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button-sm is-hidden-tablet has-inner-focus" data-bi-name="contents-expand" data-contents-button hidden> Table of contents</button> </div> <div class="content "><h1>IQueryable<T> Interface</h1> <div class="display-flex-tablet justify-content-space-between-tablet"> <ul class="metadata page-metadata align-items-center" data-bi-name="page info"> <li>Reference</li> </ul> <div id="user-feedback" class="margin-block-xxs display-none-print" data-hide-on-archived=""> <button id="user-feedback-button" data-test-id="conceptual-feedback-button" class="button button-sm button-clear button-primary" type="button" data-bi-name="user-feedback-button" data-user-feedback-button=""> Feedback </button> </div> </div> <nav id="center-doc-outline" class="doc-outline is-hidden-desktop display-none-print margin-bottom-sm" data-bi-name="intopic toc" aria-label=""> <h2 class="title is-6 margin-block-xs"></h2> </nav> <h2 id="definition">Definition</h2> <div class="metadata"> <dl class="attributeList"> <dt>Namespace:</dt> <dd> <a class="xref" href="system.linq?view=net-9.0" data-linktype="relative-path">System.Linq</a> </dd> </dl> <dl class="attributeList" data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netstandard-1.0 netstandard-1.1 netstandard-1.2 netstandard-1.3 netstandard-1.4 netstandard-1.6 "> <dt>Assembly:</dt><dd>System.Linq.Expressions.dll</dd> </dl> <dl class="attributeList" data-moniker=" netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 "> <dt>Assembly:</dt><dd>System.Core.dll</dd> </dl> <dl class="attributeList" data-moniker=" netstandard-2.0 netstandard-2.1 "> <dt>Assembly:</dt><dd>netstandard.dll</dd> </dl> </div><div class="alert is-primary is-hidden moniker-display-boilerplate"> Important Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here. </div> <div class="summaryHolder"> <div class="summary clearFix has-text-wrap"> Provides functionality to evaluate queries against a specific data source wherein the type of the data is known. </div> </div> <pre class="wrap" data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-1.0 netstandard-1.1 netstandard-1.2 netstandard-1.3 netstandard-1.4 netstandard-1.6 netstandard-2.0 netstandard-2.1 "><code class="cpp lang-cpp" dir="ltr">generic <typename T> public interface class IQueryable : System::Collections::Generic::IEnumerable<T>, System::Linq::IQueryable</code></pre> <pre class="wrap" data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-1.0 netstandard-1.1 netstandard-1.2 netstandard-1.3 netstandard-1.4 netstandard-1.6 netstandard-2.0 netstandard-2.1 "><code class="csharp lang-csharp" dir="ltr">public interface IQueryable<out T> : System.Collections.Generic.IEnumerable<out T>, System.Linq.IQueryable</code></pre> <pre class="wrap" data-moniker=" netframework-3.5 "><code class="csharp lang-csharp" dir="ltr">public interface IQueryable<T> : System.Collections.Generic.IEnumerable<T>, System.Linq.IQueryable</code></pre> <pre class="wrap" data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-1.3 netstandard-1.4 netstandard-1.6 netstandard-2.0 netstandard-2.1 "><code class="fsharp lang-fsharp" dir="ltr">type IQueryable<'T> = interface interface seq<'T> interface IEnumerable interface IQueryable</code></pre> <pre class="wrap" data-moniker=" netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netstandard-1.0 netstandard-1.1 netstandard-1.2 "><code class="fsharp lang-fsharp" dir="ltr">type IQueryable<'T> = interface interface seq<'T> interface IQueryable interface IEnumerable</code></pre> <pre class="wrap" data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-1.0 netstandard-1.1 netstandard-1.2 netstandard-1.3 netstandard-1.4 netstandard-1.6 netstandard-2.0 netstandard-2.1 "><code class="vb lang-vb" dir="ltr">Public Interface IQueryable(Of Out T) Implements IEnumerable(Of Out T), IQueryable</code></pre> <pre class="wrap" data-moniker=" netframework-3.5 "><code class="vb lang-vb" dir="ltr">Public Interface IQueryable(Of T) Implements IEnumerable(Of T), IQueryable</code></pre> <h4 class="propertyInfoTitle stack">Type Parameters</h4> <div class="propertyInfo"> <dl class="parameterList"> <dt> T </dt> <dd> </dd> </dl> The type of the data in the data source. This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see <a href="https://learn.microsoft.com/en-us/dotnet/standard/generics/covariance-and-contravariance" data-linktype="external">Covariance and Contravariance in Generics</a>. </div> <dl id="derived" class="attributeList stack"> <dt>Derived</dt> <dd> <div> <a class="xref" href="system.data.linq.itable-1?view=net-9.0" data-linktype="relative-path">System.Data.Linq.ITable<TEntity></a> </div> <div> <a class="xref" href="system.data.linq.table-1?view=net-9.0" data-linktype="relative-path">System.Data.Linq.Table<TEntity></a> </div> <div> <a class="xref" href="system.data.objects.iobjectset-1?view=net-9.0" data-linktype="relative-path">System.Data.Objects.IObjectSet<TEntity></a> </div> <div> <a class="xref" href="system.data.objects.objectquery-1?view=net-9.0" data-linktype="relative-path">System.Data.Objects.ObjectQuery<T></a> </div> <div> <a class="xref" href="system.data.objects.objectset-1?view=net-9.0" data-linktype="relative-path">System.Data.Objects.ObjectSet<TEntity></a> </div> <div class="hiddenDerivedClass" hidden=""> <a class="xref" href="system.data.services.client.dataservicequery-1?view=net-9.0" data-linktype="relative-path">System.Data.Services.Client.DataServiceQuery<TElement></a> </div> <div class="hiddenDerivedClass" hidden=""> <a class="xref" href="system.linq.enumerablequery-1?view=net-9.0" data-linktype="relative-path">System.Linq.EnumerableQuery<T></a> </div> <div class="hiddenDerivedClass" hidden=""> <a class="xref" href="system.linq.iorderedqueryable-1?view=net-9.0" data-linktype="relative-path">System.Linq.IOrderedQueryable<T></a> </div> <div><a class="derivedClassesButton" href="#" title="Show all derived classes" data-linktype="self-bookmark">More…</a></div> </dd> </dl> <dl class="attributeList stack"> <dt>Implements</dt><dd> <div class="cdlHolder"> <a href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> <a href="system.collections.ienumerable?view=net-9.0" data-linktype="relative-path">IEnumerable</a> <a href="system.linq.iqueryable?view=net-9.0" data-linktype="relative-path">IQueryable</a> </div> </dd> </dl> <h2 id="remarks">Remarks</h2> The <a href="system.linq.iqueryable-1?view=net-9.0" class="no-loc" data-linktype="relative-path">IQueryable<T></a> interface is intended for implementation by query providers. This interface inherits the <a href="system.collections.generic.ienumerable-1?view=net-9.0" class="no-loc" data-linktype="relative-path">IEnumerable<T></a> interface so that if it represents a query, the results of that query can be enumerated. Enumeration forces the expression tree associated with an <a href="system.linq.iqueryable-1?view=net-9.0" class="no-loc" data-linktype="relative-path">IQueryable<T></a> object to be executed. Queries that do not return enumerable results are executed when the <a href="system.linq.iqueryprovider.execute?view=net-9.0#system-linq-iqueryprovider-execute-1(system-linq-expressions-expression)" class="no-loc" data-linktype="relative-path">Execute<TResult>(Expression)</a> method is called. The definition of "executing an expression tree" is specific to a query provider. For example, it may involve translating the expression tree to a query language appropriate for an underlying data source. The <a href="system.linq.iqueryable-1?view=net-9.0" class="no-loc" data-linktype="relative-path">IQueryable<T></a> interface enables queries to be polymorphic. That is, because a query against an <code>IQueryable</code> data source is represented as an expression tree, it can be executed against different types of data sources. The <code>static</code> (<code>Shared</code> in Visual Basic) methods defined in the class <a href="system.linq.queryable?view=net-9.0" class="no-loc" data-linktype="relative-path">Queryable</a> (except for <a href="system.linq.queryable.asqueryable?view=net-9.0" class="no-loc" data-linktype="relative-path">AsQueryable</a>, <a href="system.linq.queryable.thenby?view=net-9.0" class="no-loc" data-linktype="relative-path">ThenBy</a>, and <a href="system.linq.queryable.thenbydescending?view=net-9.0" class="no-loc" data-linktype="relative-path">ThenByDescending</a>) extend objects of types that implement the <a href="system.linq.iqueryable-1?view=net-9.0" class="no-loc" data-linktype="relative-path">IQueryable<T></a> interface. For more information about how to create your own LINQ provider, see <a href="/en-us/archive/blogs/mattwar/linq-building-an-iqueryable-provider-part-i" data-linktype="absolute-path">LINQ: Building an IQueryable Provider</a>. <h2 id="properties"> Properties </h2> <table class="table"> <tbody><tr> <td> <a class="xref" href="system.linq.iqueryable.elementtype?view=net-9.0#system-linq-iqueryable-elementtype" data-linktype="relative-path">ElementType</a> </td> <td class="has-text-wrap"> Gets the type of the element(s) that are returned when the expression tree associated with this instance of <a class="no-loc" href="system.linq.iqueryable?view=net-9.0" data-linktype="relative-path">IQueryable</a> is executed. (Inherited from <a class="xref" href="system.linq.iqueryable?view=net-9.0" data-linktype="relative-path">IQueryable</a>) </td> </tr> <tr> <td> <a class="xref" href="system.linq.iqueryable.expression?view=net-9.0#system-linq-iqueryable-expression" data-linktype="relative-path">Expression</a> </td> <td class="has-text-wrap"> Gets the expression tree that is associated with the instance of <a class="no-loc" href="system.linq.iqueryable?view=net-9.0" data-linktype="relative-path">IQueryable</a>. (Inherited from <a class="xref" href="system.linq.iqueryable?view=net-9.0" data-linktype="relative-path">IQueryable</a>) </td> </tr> <tr> <td> <a class="xref" href="system.linq.iqueryable.provider?view=net-9.0#system-linq-iqueryable-provider" data-linktype="relative-path">Provider</a> </td> <td class="has-text-wrap"> Gets the query provider that is associated with this data source. (Inherited from <a class="xref" href="system.linq.iqueryable?view=net-9.0" data-linktype="relative-path">IQueryable</a>) </td> </tr> </tbody></table> <h2 id="methods" data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-1.1 netframework-2.0 netframework-3.0 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-1.0 netstandard-1.1 netstandard-1.2 netstandard-1.3 netstandard-1.4 netstandard-1.5 netstandard-1.6 netstandard-2.0 netstandard-2.1 "> Methods </h2> <table class="table"> <tbody><tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-1.1 netframework-2.0 netframework-3.0 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-1.0 netstandard-1.1 netstandard-1.2 netstandard-1.3 netstandard-1.4 netstandard-1.5 netstandard-1.6 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.collections.ienumerable.getenumerator?view=net-9.0#system-collections-ienumerable-getenumerator" data-linktype="relative-path">GetEnumerator()</a> </td> <td class="has-text-wrap"> Returns an enumerator that iterates through a collection. (Inherited from <a class="xref" href="system.collections.ienumerable?view=net-9.0" data-linktype="relative-path">IEnumerable</a>) </td> </tr> </tbody></table> <h2 id="extension-methods">Extension Methods</h2> <table class="table"> <tbody><tr data-moniker=" net-8.0 net-8.0-pp net-9.0 net-9.0-pp netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.frozen.frozendictionary.tofrozendictionary?view=net-9.0#system-collections-frozen-frozendictionary-tofrozendictionary-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ToFrozenDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.frozen.frozendictionary-2?view=net-9.0" data-linktype="relative-path">FrozenDictionary<TKey,TValue></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to specified key selector function. </td> </tr> <tr data-moniker=" net-8.0 net-8.0-pp net-9.0 net-9.0-pp netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.frozen.frozendictionary.tofrozendictionary?view=net-9.0#system-collections-frozen-frozendictionary-tofrozendictionary-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ToFrozenDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.frozen.frozendictionary-2?view=net-9.0" data-linktype="relative-path">FrozenDictionary<TKey,TValue></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to specified key selector and element selector functions. </td> </tr> <tr data-moniker=" net-8.0 net-8.0-pp net-9.0 net-9.0-pp netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.frozen.frozenset.tofrozenset?view=net-9.0#system-collections-frozen-frozenset-tofrozenset-1(system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">ToFrozenSet<T>(IEnumerable<T>, IEqualityComparer<T>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.frozen.frozenset-1?view=net-9.0" data-linktype="relative-path">FrozenSet<T></a> with the specified values. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutablearray.toimmutablearray?view=net-9.0#system-collections-immutable-immutablearray-toimmutablearray-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">ToImmutableArray<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Creates an immutable array from the specified collection. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutabledictionary.toimmutabledictionary?view=net-9.0#system-collections-immutable-immutabledictionary-toimmutabledictionary-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Constructs an immutable dictionary based on some transformation of a sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutabledictionary.toimmutabledictionary?view=net-9.0#system-collections-immutable-immutabledictionary-toimmutabledictionary-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">ToImmutableDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Constructs an immutable dictionary from an existing collection of elements, applying a transformation function to the source keys. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutabledictionary.toimmutabledictionary?view=net-9.0#system-collections-immutable-immutabledictionary-toimmutabledictionary-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-collections-generic-iequalitycomparer((-1))-system-collections-generic-iequalitycomparer((-2)))" data-linktype="relative-path">ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>, IEqualityComparer<TValue>)</a> </td> <td class="has-text-wrap"> Enumerates and transforms a sequence, and produces an immutable dictionary of its contents by using the specified key and value comparers. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutabledictionary.toimmutabledictionary?view=net-9.0#system-collections-immutable-immutabledictionary-toimmutabledictionary-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Enumerates and transforms a sequence, and produces an immutable dictionary of its contents by using the specified key comparer. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutabledictionary.toimmutabledictionary?view=net-9.0#system-collections-immutable-immutabledictionary-toimmutabledictionary-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2)))" data-linktype="relative-path">ToImmutableDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>)</a> </td> <td class="has-text-wrap"> Enumerates and transforms a sequence, and produces an immutable dictionary of its contents. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutablehashset.toimmutablehashset?view=net-9.0#system-collections-immutable-immutablehashset-toimmutablehashset-1(system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">ToImmutableHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Enumerates a sequence, produces an immutable hash set of its contents, and uses the specified equality comparer for the set type. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutablehashset.toimmutablehashset?view=net-9.0#system-collections-immutable-immutablehashset-toimmutablehashset-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">ToImmutableHashSet<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Enumerates a sequence and produces an immutable hash set of its contents. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutablelist.toimmutablelist?view=net-9.0#system-collections-immutable-immutablelist-toimmutablelist-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">ToImmutableList<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Enumerates a sequence and produces an immutable list of its contents. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutablesorteddictionary.toimmutablesorteddictionary?view=net-9.0#system-collections-immutable-immutablesorteddictionary-toimmutablesorteddictionary-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-collections-generic-icomparer((-1))-system-collections-generic-iequalitycomparer((-2)))" data-linktype="relative-path">ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>, IEqualityComparer<TValue>)</a> </td> <td class="has-text-wrap"> Enumerates and transforms a sequence, and produces an immutable sorted dictionary of its contents by using the specified key and value comparers. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutablesorteddictionary.toimmutablesorteddictionary?view=net-9.0#system-collections-immutable-immutablesorteddictionary-toimmutablesorteddictionary-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-collections-generic-icomparer((-1)))" data-linktype="relative-path">ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>, IComparer<TKey>)</a> </td> <td class="has-text-wrap"> Enumerates and transforms a sequence, and produces an immutable sorted dictionary of its contents by using the specified key comparer. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutablesorteddictionary.toimmutablesorteddictionary?view=net-9.0#system-collections-immutable-immutablesorteddictionary-toimmutablesorteddictionary-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2)))" data-linktype="relative-path">ToImmutableSortedDictionary<TSource,TKey,TValue>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TValue>)</a> </td> <td class="has-text-wrap"> Enumerates and transforms a sequence, and produces an immutable sorted dictionary of its contents. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutablesortedset.toimmutablesortedset?view=net-9.0#system-collections-immutable-immutablesortedset-toimmutablesortedset-1(system-collections-generic-ienumerable((-0))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">ToImmutableSortedSet<TSource>(IEnumerable<TSource>, IComparer<TSource>)</a> </td> <td class="has-text-wrap"> Enumerates a sequence, produces an immutable sorted set of its contents, and uses the specified comparer. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-8.0-pp net-9.0 net-9.0-pp netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7-pp netframework-4.7.1-pp netframework-4.7.2-pp netframework-4.8-pp netframework-4.8.1-pp netstandard-2.0-pp "> <td> <a class="xref" href="system.collections.immutable.immutablesortedset.toimmutablesortedset?view=net-9.0#system-collections-immutable-immutablesortedset-toimmutablesortedset-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">ToImmutableSortedSet<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Enumerates a sequence and produces an immutable sorted set of its contents. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0-pp netstandard-2.1 "> <td> <a class="xref" href="system.data.datatableextensions.copytodatatable?view=net-9.0#system-data-datatableextensions-copytodatatable-1(system-collections-generic-ienumerable((-0))-system-data-datatable-system-data-loadoption-system-data-fillerroreventhandler)" data-linktype="relative-path">CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption, FillErrorEventHandler)</a> </td> <td class="has-text-wrap"> Copies <a class="no-loc" href="system.data.datarow?view=net-9.0" data-linktype="relative-path">DataRow</a> objects to the specified <a class="no-loc" href="system.data.datatable?view=net-9.0" data-linktype="relative-path">DataTable</a>, given an input <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> object where the generic parameter <code data-dev-comment-type="paramref">T</code> is <a class="no-loc" href="system.data.datarow?view=net-9.0" data-linktype="relative-path">DataRow</a>. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0-pp netstandard-2.1 "> <td> <a class="xref" href="system.data.datatableextensions.copytodatatable?view=net-9.0#system-data-datatableextensions-copytodatatable-1(system-collections-generic-ienumerable((-0))-system-data-datatable-system-data-loadoption)" data-linktype="relative-path">CopyToDataTable<T>(IEnumerable<T>, DataTable, LoadOption)</a> </td> <td class="has-text-wrap"> Copies <a class="no-loc" href="system.data.datarow?view=net-9.0" data-linktype="relative-path">DataRow</a> objects to the specified <a class="no-loc" href="system.data.datatable?view=net-9.0" data-linktype="relative-path">DataTable</a>, given an input <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> object where the generic parameter <code data-dev-comment-type="paramref">T</code> is <a class="no-loc" href="system.data.datarow?view=net-9.0" data-linktype="relative-path">DataRow</a>. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0-pp netstandard-2.1 "> <td> <a class="xref" href="system.data.datatableextensions.copytodatatable?view=net-9.0#system-data-datatableextensions-copytodatatable-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">CopyToDataTable<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Returns a <a class="no-loc" href="system.data.datatable?view=net-9.0" data-linktype="relative-path">DataTable</a> that contains copies of the <a class="no-loc" href="system.data.datarow?view=net-9.0" data-linktype="relative-path">DataRow</a> objects, given an input <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> object where the generic parameter <code data-dev-comment-type="paramref">T</code> is <a class="no-loc" href="system.data.datarow?view=net-9.0" data-linktype="relative-path">DataRow</a>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.aggregate?view=net-9.0#system-linq-enumerable-aggregate-1(system-collections-generic-ienumerable((-0))-system-func((-0-0-0)))" data-linktype="relative-path">Aggregate<TSource>(IEnumerable<TSource>, Func<TSource,TSource,TSource>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.aggregate?view=net-9.0#system-linq-enumerable-aggregate-2(system-collections-generic-ienumerable((-0))-1-system-func((-1-0-1)))" data-linktype="relative-path">Aggregate<TSource,TAccumulate>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.aggregate?view=net-9.0#system-linq-enumerable-aggregate-3(system-collections-generic-ienumerable((-0))-1-system-func((-1-0-1))-system-func((-1-2)))" data-linktype="relative-path">Aggregate<TSource,TAccumulate,TResult>(IEnumerable<TSource>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>, Func<TAccumulate,TResult>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value. </td> </tr> <tr data-moniker=" net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.aggregateby?view=net-9.0#system-linq-enumerable-aggregateby-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-2-system-func((-2-0-2))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">AggregateBy<TSource,TKey,TAccumulate>(IEnumerable<TSource>, Func<TSource, TKey>, TAccumulate, Func<TAccumulate,TSource,TAccumulate>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence, grouping results by key. </td> </tr> <tr data-moniker=" net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.aggregateby?view=net-9.0#system-linq-enumerable-aggregateby-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-1-2))-system-func((-2-0-2))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">AggregateBy<TSource,TKey,TAccumulate>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TKey,TAccumulate>, Func<TAccumulate,TSource,TAccumulate>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence, grouping results by key. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.all?view=net-9.0#system-linq-enumerable-all-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">All<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Determines whether all elements of a sequence satisfy a condition. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.any?view=net-9.0#system-linq-enumerable-any-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">Any<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Determines whether any element of a sequence satisfies a condition. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.any?view=net-9.0#system-linq-enumerable-any-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Any<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Determines whether a sequence contains any elements. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-1.6 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.enumerable.append?view=net-9.0#system-linq-enumerable-append-1(system-collections-generic-ienumerable((-0))-0)" data-linktype="relative-path">Append<TSource>(IEnumerable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Appends a value to the end of the sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.asenumerable?view=net-9.0#system-linq-enumerable-asenumerable-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">AsEnumerable<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the input typed as <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-decimal)))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-double)))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Double>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32)))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int64)))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-decimal)))))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-double)))))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-int32)))))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-int64)))))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-single)))))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.average?view=net-9.0#system-linq-enumerable-average-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-single)))" data-linktype="relative-path">Average<TSource>(IEnumerable<TSource>, Func<TSource,Single>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.cast?view=net-9.0#system-linq-enumerable-cast-1(system-collections-ienumerable)" data-linktype="relative-path">Cast<TResult>(IEnumerable)</a> </td> <td class="has-text-wrap"> Casts the elements of an <a class="no-loc" href="system.collections.ienumerable?view=net-9.0" data-linktype="relative-path">IEnumerable</a> to the specified type. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.chunk?view=net-9.0#system-linq-enumerable-chunk-1(system-collections-generic-ienumerable((-0))-system-int32)" data-linktype="relative-path">Chunk<TSource>(IEnumerable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Splits the elements of a sequence into chunks of size at most <code data-dev-comment-type="paramref">size</code>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.concat?view=net-9.0#system-linq-enumerable-concat-1(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Concat<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Concatenates two sequences. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.contains?view=net-9.0#system-linq-enumerable-contains-1(system-collections-generic-ienumerable((-0))-0-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Contains<TSource>(IEnumerable<TSource>, TSource, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Determines whether a sequence contains a specified element by using a specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.contains?view=net-9.0#system-linq-enumerable-contains-1(system-collections-generic-ienumerable((-0))-0)" data-linktype="relative-path">Contains<TSource>(IEnumerable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Determines whether a sequence contains a specified element by using the default equality comparer. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.count?view=net-9.0#system-linq-enumerable-count-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">Count<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Returns a number that represents how many elements in the specified sequence satisfy a condition. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.count?view=net-9.0#system-linq-enumerable-count-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Count<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the number of elements in a sequence. </td> </tr> <tr data-moniker=" net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.countby?view=net-9.0#system-linq-enumerable-countby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">CountBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Returns the count of elements in the source sequence grouped by key. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.defaultifempty?view=net-9.0#system-linq-enumerable-defaultifempty-1(system-collections-generic-ienumerable((-0))-0)" data-linktype="relative-path">DefaultIfEmpty<TSource>(IEnumerable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.defaultifempty?view=net-9.0#system-linq-enumerable-defaultifempty-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">DefaultIfEmpty<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.distinct?view=net-9.0#system-linq-enumerable-distinct-1(system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Distinct<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Returns distinct elements from a sequence by using a specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> to compare values. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.distinct?view=net-9.0#system-linq-enumerable-distinct-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Distinct<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns distinct elements from a sequence by using the default equality comparer to compare values. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.distinctby?view=net-9.0#system-linq-enumerable-distinctby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">DistinctBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Returns distinct elements from a sequence according to a specified key selector function and using a specified comparer to compare keys. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.distinctby?view=net-9.0#system-linq-enumerable-distinctby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">DistinctBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Returns distinct elements from a sequence according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.elementat?view=net-9.0#system-linq-enumerable-elementat-1(system-collections-generic-ienumerable((-0))-system-index)" data-linktype="relative-path">ElementAt<TSource>(IEnumerable<TSource>, Index)</a> </td> <td class="has-text-wrap"> Returns the element at a specified index in a sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.elementat?view=net-9.0#system-linq-enumerable-elementat-1(system-collections-generic-ienumerable((-0))-system-int32)" data-linktype="relative-path">ElementAt<TSource>(IEnumerable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns the element at a specified index in a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.elementatordefault?view=net-9.0#system-linq-enumerable-elementatordefault-1(system-collections-generic-ienumerable((-0))-system-index)" data-linktype="relative-path">ElementAtOrDefault<TSource>(IEnumerable<TSource>, Index)</a> </td> <td class="has-text-wrap"> Returns the element at a specified index in a sequence or a default value if the index is out of range. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.elementatordefault?view=net-9.0#system-linq-enumerable-elementatordefault-1(system-collections-generic-ienumerable((-0))-system-int32)" data-linktype="relative-path">ElementAtOrDefault<TSource>(IEnumerable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns the element at a specified index in a sequence or a default value if the index is out of range. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.except?view=net-9.0#system-linq-enumerable-except-1(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set difference of two sequences by using the specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> to compare values. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.except?view=net-9.0#system-linq-enumerable-except-1(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Except<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set difference of two sequences by using the default equality comparer to compare values. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.exceptby?view=net-9.0#system-linq-enumerable-exceptby-2(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ExceptBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TKey>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Produces the set difference of two sequences according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.exceptby?view=net-9.0#system-linq-enumerable-exceptby-2(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-func((-0-1)))" data-linktype="relative-path">ExceptBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TKey>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Produces the set difference of two sequences according to a specified key selector function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.first?view=net-9.0#system-linq-enumerable-first-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">First<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Returns the first element in a sequence that satisfies a specified condition. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.first?view=net-9.0#system-linq-enumerable-first-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">First<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the first element of a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.firstordefault?view=net-9.0#system-linq-enumerable-firstordefault-1(system-collections-generic-ienumerable((-0))-0)" data-linktype="relative-path">FirstOrDefault<TSource>(IEnumerable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns the first element of a sequence, or a specified default value if the sequence contains no elements. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.firstordefault?view=net-9.0#system-linq-enumerable-firstordefault-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean))-0)" data-linktype="relative-path">FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>, TSource)</a> </td> <td class="has-text-wrap"> Returns the first element of the sequence that satisfies a condition, or a specified default value if no such element is found. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.firstordefault?view=net-9.0#system-linq-enumerable-firstordefault-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">FirstOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Returns the first element of the sequence that satisfies a condition or a default value if no such element is found. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.firstordefault?view=net-9.0#system-linq-enumerable-firstordefault-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">FirstOrDefault<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the first element of a sequence, or a default value if the sequence contains no elements. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupby?view=net-9.0#system-linq-enumerable-groupby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupby?view=net-9.0#system-linq-enumerable-groupby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">GroupBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupby?view=net-9.0#system-linq-enumerable-groupby-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupby?view=net-9.0#system-linq-enumerable-groupby-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2)))" data-linktype="relative-path">GroupBy<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupby?view=net-9.0#system-linq-enumerable-groupby-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-1-system-collections-generic-ienumerable((-0))-2))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupby?view=net-9.0#system-linq-enumerable-groupby-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-1-system-collections-generic-ienumerable((-0))-2)))" data-linktype="relative-path">GroupBy<TSource,TKey,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TKey,IEnumerable<TSource>,TResult>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupby?view=net-9.0#system-linq-enumerable-groupby-4(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-func((-1-system-collections-generic-ienumerable((-2))-3))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>, TResult>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupby?view=net-9.0#system-linq-enumerable-groupby-4(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-func((-1-system-collections-generic-ienumerable((-2))-3)))" data-linktype="relative-path">GroupBy<TSource,TKey,TElement,TResult>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, Func<TKey,IEnumerable<TElement>,TResult>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupjoin?view=net-9.0#system-linq-enumerable-groupjoin-4(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-func((-0-2))-system-func((-1-2))-system-func((-0-system-collections-generic-ienumerable((-1))-3))-system-collections-generic-iequalitycomparer((-2)))" data-linktype="relative-path">GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>, TResult>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Correlates the elements of two sequences based on key equality and groups the results. A specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> is used to compare keys. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.groupjoin?view=net-9.0#system-linq-enumerable-groupjoin-4(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-func((-0-2))-system-func((-1-2))-system-func((-0-system-collections-generic-ienumerable((-1))-3)))" data-linktype="relative-path">GroupJoin<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable<TInner>, TResult>)</a> </td> <td class="has-text-wrap"> Correlates the elements of two sequences based on equality of keys and groups the results. The default equality comparer is used to compare keys. </td> </tr> <tr data-moniker=" net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.index?view=net-9.0#system-linq-enumerable-index-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Index<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns an enumerable that incorporates the element's index into a tuple. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.intersect?view=net-9.0#system-linq-enumerable-intersect-1(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set intersection of two sequences by using the specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> to compare values. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.intersect?view=net-9.0#system-linq-enumerable-intersect-1(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Intersect<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set intersection of two sequences by using the default equality comparer to compare values. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.intersectby?view=net-9.0#system-linq-enumerable-intersectby-2(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">IntersectBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TKey>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Produces the set intersection of two sequences according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.intersectby?view=net-9.0#system-linq-enumerable-intersectby-2(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-func((-0-1)))" data-linktype="relative-path">IntersectBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TKey>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Produces the set intersection of two sequences according to a specified key selector function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.join?view=net-9.0#system-linq-enumerable-join-4(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-func((-0-2))-system-func((-1-2))-system-func((-0-1-3))-system-collections-generic-iequalitycomparer((-2)))" data-linktype="relative-path">Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Correlates the elements of two sequences based on matching keys. A specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> is used to compare keys. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.join?view=net-9.0#system-linq-enumerable-join-4(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-func((-0-2))-system-func((-1-2))-system-func((-0-1-3)))" data-linktype="relative-path">Join<TOuter,TInner,TKey,TResult>(IEnumerable<TOuter>, IEnumerable<TInner>, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,TInner,TResult>)</a> </td> <td class="has-text-wrap"> Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.last?view=net-9.0#system-linq-enumerable-last-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">Last<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence that satisfies a specified condition. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.last?view=net-9.0#system-linq-enumerable-last-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Last<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.lastordefault?view=net-9.0#system-linq-enumerable-lastordefault-1(system-collections-generic-ienumerable((-0))-0)" data-linktype="relative-path">LastOrDefault<TSource>(IEnumerable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence, or a specified default value if the sequence contains no elements. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.lastordefault?view=net-9.0#system-linq-enumerable-lastordefault-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean))-0)" data-linktype="relative-path">LastOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>, TSource)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence that satisfies a condition, or a specified default value if no such element is found. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.lastordefault?view=net-9.0#system-linq-enumerable-lastordefault-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">LastOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence that satisfies a condition or a default value if no such element is found. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.lastordefault?view=net-9.0#system-linq-enumerable-lastordefault-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">LastOrDefault<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence, or a default value if the sequence contains no elements. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.longcount?view=net-9.0#system-linq-enumerable-longcount-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">LongCount<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Returns an <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> that represents how many elements in a sequence satisfy a condition. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.longcount?view=net-9.0#system-linq-enumerable-longcount-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">LongCount<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns an <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> that represents the total number of elements in a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, IComparer<TSource>)</a> </td> <td class="has-text-wrap"> Returns the maximum value in a generic sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-decimal)))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-double)))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Double>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32)))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int64)))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-decimal)))))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum nullable <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-double)))))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum nullable <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-int32)))))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum nullable <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-int64)))))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum nullable <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-single)))))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum nullable <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-single)))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>, Func<TSource,Single>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the maximum <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Max<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the maximum value in a generic sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.max?view=net-9.0#system-linq-enumerable-max-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">Max<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a generic sequence and returns the maximum resulting value. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.maxby?view=net-9.0#system-linq-enumerable-maxby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-icomparer((-1)))" data-linktype="relative-path">MaxBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)</a> </td> <td class="has-text-wrap"> Returns the maximum value in a generic sequence according to a specified key selector function and key comparer. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.maxby?view=net-9.0#system-linq-enumerable-maxby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">MaxBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Returns the maximum value in a generic sequence according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, IComparer<TSource>)</a> </td> <td class="has-text-wrap"> Returns the minimum value in a generic sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-decimal)))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-double)))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Double>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32)))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int64)))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-decimal)))))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum nullable <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-double)))))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum nullable <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-int32)))))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum nullable <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-int64)))))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum nullable <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-single)))))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum nullable <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-single)))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>, Func<TSource,Single>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a sequence and returns the minimum <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> value. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Min<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the minimum value in a generic sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.min?view=net-9.0#system-linq-enumerable-min-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">Min<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)</a> </td> <td class="has-text-wrap"> Invokes a transform function on each element of a generic sequence and returns the minimum resulting value. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.minby?view=net-9.0#system-linq-enumerable-minby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-icomparer((-1)))" data-linktype="relative-path">MinBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)</a> </td> <td class="has-text-wrap"> Returns the minimum value in a generic sequence according to a specified key selector function and key comparer. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.minby?view=net-9.0#system-linq-enumerable-minby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">MinBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Returns the minimum value in a generic sequence according to a specified key selector function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.oftype?view=net-9.0#system-linq-enumerable-oftype-1(system-collections-ienumerable)" data-linktype="relative-path">OfType<TResult>(IEnumerable)</a> </td> <td class="has-text-wrap"> Filters the elements of an <a class="no-loc" href="system.collections.ienumerable?view=net-9.0" data-linktype="relative-path">IEnumerable</a> based on a specified type. </td> </tr> <tr data-moniker=" net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.order?view=net-9.0#system-linq-enumerable-order-1(system-collections-generic-ienumerable((-0))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">Order<T>(IEnumerable<T>, IComparer<T>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in ascending order. </td> </tr> <tr data-moniker=" net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.order?view=net-9.0#system-linq-enumerable-order-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Order<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in ascending order. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.orderby?view=net-9.0#system-linq-enumerable-orderby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-icomparer((-1)))" data-linktype="relative-path">OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in ascending order by using a specified comparer. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.orderby?view=net-9.0#system-linq-enumerable-orderby-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">OrderBy<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in ascending order according to a key. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.orderbydescending?view=net-9.0#system-linq-enumerable-orderbydescending-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-icomparer((-1)))" data-linktype="relative-path">OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in descending order by using a specified comparer. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.orderbydescending?view=net-9.0#system-linq-enumerable-orderbydescending-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">OrderByDescending<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in descending order according to a key. </td> </tr> <tr data-moniker=" net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.orderdescending?view=net-9.0#system-linq-enumerable-orderdescending-1(system-collections-generic-ienumerable((-0))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">OrderDescending<T>(IEnumerable<T>, IComparer<T>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in descending order. </td> </tr> <tr data-moniker=" net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.orderdescending?view=net-9.0#system-linq-enumerable-orderdescending-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">OrderDescending<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in descending order. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-1.6 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.enumerable.prepend?view=net-9.0#system-linq-enumerable-prepend-1(system-collections-generic-ienumerable((-0))-0)" data-linktype="relative-path">Prepend<TSource>(IEnumerable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Adds a value to the beginning of the sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.reverse?view=net-9.0#system-linq-enumerable-reverse-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Reverse<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Inverts the order of the elements in a sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.select?view=net-9.0#system-linq-enumerable-select-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,TResult>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence into a new form. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.select?view=net-9.0#system-linq-enumerable-select-2(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32-1)))" data-linktype="relative-path">Select<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,TResult>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence into a new form by incorporating the element's index. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.selectmany?view=net-9.0#system-linq-enumerable-selectmany-2(system-collections-generic-ienumerable((-0))-system-func((-0-system-collections-generic-ienumerable((-1)))))" data-linktype="relative-path">SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TResult>>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence to an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> and flattens the resulting sequences into one sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.selectmany?view=net-9.0#system-linq-enumerable-selectmany-2(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32-system-collections-generic-ienumerable((-1)))))" data-linktype="relative-path">SelectMany<TSource,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TResult>>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence to an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a>, and flattens the resulting sequences into one sequence. The index of each source element is used in the projected form of that element. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.selectmany?view=net-9.0#system-linq-enumerable-selectmany-3(system-collections-generic-ienumerable((-0))-system-func((-0-system-collections-generic-ienumerable((-1))))-system-func((-0-1-2)))" data-linktype="relative-path">SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence to an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.selectmany?view=net-9.0#system-linq-enumerable-selectmany-3(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32-system-collections-generic-ienumerable((-1))))-system-func((-0-1-2)))" data-linktype="relative-path">SelectMany<TSource,TCollection,TResult>(IEnumerable<TSource>, Func<TSource,Int32,IEnumerable<TCollection>>, Func<TSource,TCollection,TResult>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence to an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a>, flattens the resulting sequences into one sequence, and invokes a result selector function on each element therein. The index of each source element is used in the intermediate projected form of that element. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sequenceequal?view=net-9.0#system-linq-enumerable-sequenceequal-1(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Determines whether two sequences are equal by comparing their elements by using a specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sequenceequal?view=net-9.0#system-linq-enumerable-sequenceequal-1(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">SequenceEqual<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Determines whether two sequences are equal by comparing the elements by using the default equality comparer for their type. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.single?view=net-9.0#system-linq-enumerable-single-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">Single<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.single?view=net-9.0#system-linq-enumerable-single-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Single<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.singleordefault?view=net-9.0#system-linq-enumerable-singleordefault-1(system-collections-generic-ienumerable((-0))-0)" data-linktype="relative-path">SingleOrDefault<TSource>(IEnumerable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence, or a specified default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.singleordefault?view=net-9.0#system-linq-enumerable-singleordefault-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean))-0)" data-linktype="relative-path">SingleOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>, TSource)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence that satisfies a specified condition, or a specified default value if no such element exists; this method throws an exception if more than one element satisfies the condition. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.singleordefault?view=net-9.0#system-linq-enumerable-singleordefault-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">SingleOrDefault<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.singleordefault?view=net-9.0#system-linq-enumerable-singleordefault-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">SingleOrDefault<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.skip?view=net-9.0#system-linq-enumerable-skip-1(system-collections-generic-ienumerable((-0))-system-int32)" data-linktype="relative-path">Skip<TSource>(IEnumerable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Bypasses a specified number of elements in a sequence and then returns the remaining elements. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netstandard-2.1 "> <td> <a class="xref" href="system.linq.enumerable.skiplast?view=net-9.0#system-linq-enumerable-skiplast-1(system-collections-generic-ienumerable((-0))-system-int32)" data-linktype="relative-path">SkipLast<TSource>(IEnumerable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns a new enumerable collection that contains the elements from <code data-dev-comment-type="paramref">source</code> with the last <code data-dev-comment-type="paramref">count</code> elements of the source collection omitted. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.skipwhile?view=net-9.0#system-linq-enumerable-skipwhile-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.skipwhile?view=net-9.0#system-linq-enumerable-skipwhile-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32-system-boolean)))" data-linktype="relative-path">SkipWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)</a> </td> <td class="has-text-wrap"> Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-decimal)))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Decimal>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-double)))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Double>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32)))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int32>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int64)))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Int64>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-decimal)))))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Decimal>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-double)))))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Double>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-int32)))))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int32>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-int64)))))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Int64>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-nullable((system-single)))))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Nullable<Single>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.sum?view=net-9.0#system-linq-enumerable-sum-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-single)))" data-linktype="relative-path">Sum<TSource>(IEnumerable<TSource>, Func<TSource,Single>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> values that are obtained by invoking a transform function on each element of the input sequence. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.take?view=net-9.0#system-linq-enumerable-take-1(system-collections-generic-ienumerable((-0))-system-int32)" data-linktype="relative-path">Take<TSource>(IEnumerable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns a specified number of contiguous elements from the start of a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.take?view=net-9.0#system-linq-enumerable-take-1(system-collections-generic-ienumerable((-0))-system-range)" data-linktype="relative-path">Take<TSource>(IEnumerable<TSource>, Range)</a> </td> <td class="has-text-wrap"> Returns a specified range of contiguous elements from a sequence. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netstandard-2.1 "> <td> <a class="xref" href="system.linq.enumerable.takelast?view=net-9.0#system-linq-enumerable-takelast-1(system-collections-generic-ienumerable((-0))-system-int32)" data-linktype="relative-path">TakeLast<TSource>(IEnumerable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns a new enumerable collection that contains the last <code data-dev-comment-type="paramref">count</code> elements from <code data-dev-comment-type="paramref">source</code>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.takewhile?view=net-9.0#system-linq-enumerable-takewhile-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Returns elements from a sequence as long as a specified condition is true. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.takewhile?view=net-9.0#system-linq-enumerable-takewhile-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32-system-boolean)))" data-linktype="relative-path">TakeWhile<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)</a> </td> <td class="has-text-wrap"> Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.toarray?view=net-9.0#system-linq-enumerable-toarray-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">ToArray<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Creates an array from a <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.todictionary?view=net-9.0#system-linq-enumerable-todictionary-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.generic.dictionary-2?view=net-9.0" data-linktype="relative-path">Dictionary<TKey,TValue></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to a specified key selector function and key comparer. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.todictionary?view=net-9.0#system-linq-enumerable-todictionary-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">ToDictionary<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.generic.dictionary-2?view=net-9.0" data-linktype="relative-path">Dictionary<TKey,TValue></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to a specified key selector function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.todictionary?view=net-9.0#system-linq-enumerable-todictionary-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.generic.dictionary-2?view=net-9.0" data-linktype="relative-path">Dictionary<TKey,TValue></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to a specified key selector function, a comparer, and an element selector function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.todictionary?view=net-9.0#system-linq-enumerable-todictionary-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2)))" data-linktype="relative-path">ToDictionary<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.generic.dictionary-2?view=net-9.0" data-linktype="relative-path">Dictionary<TKey,TValue></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to specified key selector and element selector functions. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.1 "> <td> <a class="xref" href="system.linq.enumerable.tohashset?view=net-9.0#system-linq-enumerable-tohashset-1(system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">ToHashSet<TSource>(IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.generic.hashset-1?view=net-9.0" data-linktype="relative-path">HashSet<T></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> using the <code data-dev-comment-type="paramref">comparer</code> to compare keys. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.1 "> <td> <a class="xref" href="system.linq.enumerable.tohashset?view=net-9.0#system-linq-enumerable-tohashset-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">ToHashSet<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.generic.hashset-1?view=net-9.0" data-linktype="relative-path">HashSet<T></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.tolist?view=net-9.0#system-linq-enumerable-tolist-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">ToList<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.collections.generic.list-1?view=net-9.0" data-linktype="relative-path">List<T></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.tolookup?view=net-9.0#system-linq-enumerable-tolookup-2(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.linq.lookup-2?view=net-9.0" data-linktype="relative-path">Lookup<TKey,TElement></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to a specified key selector function and key comparer. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.tolookup?view=net-9.0#system-linq-enumerable-tolookup-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">ToLookup<TSource,TKey>(IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.linq.lookup-2?view=net-9.0" data-linktype="relative-path">Lookup<TKey,TElement></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to a specified key selector function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.tolookup?view=net-9.0#system-linq-enumerable-tolookup-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.linq.lookup-2?view=net-9.0" data-linktype="relative-path">Lookup<TKey,TElement></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to a specified key selector function, a comparer and an element selector function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.tolookup?view=net-9.0#system-linq-enumerable-tolookup-3(system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-func((-0-2)))" data-linktype="relative-path">ToLookup<TSource,TKey,TElement>(IEnumerable<TSource>, Func<TSource,TKey>, Func<TSource,TElement>)</a> </td> <td class="has-text-wrap"> Creates a <a class="no-loc" href="system.linq.lookup-2?view=net-9.0" data-linktype="relative-path">Lookup<TKey,TElement></a> from an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> according to specified key selector and element selector functions. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.trygetnonenumeratedcount?view=net-9.0#system-linq-enumerable-trygetnonenumeratedcount-1(system-collections-generic-ienumerable((-0))-system-int32@)" data-linktype="relative-path">TryGetNonEnumeratedCount<TSource>(IEnumerable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Attempts to determine the number of elements in a sequence without forcing an enumeration. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.union?view=net-9.0#system-linq-enumerable-union-1(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set union of two sequences by using a specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a>. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.union?view=net-9.0#system-linq-enumerable-union-1(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Union<TSource>(IEnumerable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set union of two sequences by using the default equality comparer. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.unionby?view=net-9.0#system-linq-enumerable-unionby-2(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0))-system-func((-0-1))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">UnionBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TSource>, Func<TSource,TKey>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Produces the set union of two sequences according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.unionby?view=net-9.0#system-linq-enumerable-unionby-2(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-0))-system-func((-0-1)))" data-linktype="relative-path">UnionBy<TSource,TKey>(IEnumerable<TSource>, IEnumerable<TSource>, Func<TSource,TKey>)</a> </td> <td class="has-text-wrap"> Produces the set union of two sequences according to a specified key selector function. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.where?view=net-9.0#system-linq-enumerable-where-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-boolean)))" data-linktype="relative-path">Where<TSource>(IEnumerable<TSource>, Func<TSource,Boolean>)</a> </td> <td class="has-text-wrap"> Filters a sequence of values based on a predicate. </td> </tr> <tr> <td> <a class="xref" href="system.linq.enumerable.where?view=net-9.0#system-linq-enumerable-where-1(system-collections-generic-ienumerable((-0))-system-func((-0-system-int32-system-boolean)))" data-linktype="relative-path">Where<TSource>(IEnumerable<TSource>, Func<TSource,Int32,Boolean>)</a> </td> <td class="has-text-wrap"> Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-3.0 netcore-3.1 "> <td> <a class="xref" href="system.linq.enumerable.zip?view=net-9.0#system-linq-enumerable-zip-2(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1)))" data-linktype="relative-path">Zip<TFirst,TSecond>(IEnumerable<TFirst>, IEnumerable<TSecond>)</a> </td> <td class="has-text-wrap"> Produces a sequence of tuples with elements from the two specified sequences. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.enumerable.zip?view=net-9.0#system-linq-enumerable-zip-3(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-collections-generic-ienumerable((-2)))" data-linktype="relative-path">Zip<TFirst,TSecond,TThird>(IEnumerable<TFirst>, IEnumerable<TSecond>, IEnumerable<TThird>)</a> </td> <td class="has-text-wrap"> Produces a sequence of tuples with elements from the three specified sequences. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-1.0 netstandard-1.1 netstandard-1.2 netstandard-1.3 netstandard-1.4 netstandard-1.6 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.enumerable.zip?view=net-9.0#system-linq-enumerable-zip-3(system-collections-generic-ienumerable((-0))-system-collections-generic-ienumerable((-1))-system-func((-0-1-2)))" data-linktype="relative-path">Zip<TFirst,TSecond,TResult>(IEnumerable<TFirst>, IEnumerable<TSecond>, Func<TFirst,TSecond,TResult>)</a> </td> <td class="has-text-wrap"> Applies a specified function to the corresponding elements of two sequences, producing a sequence of the results. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.parallelenumerable.asparallel?view=net-9.0#system-linq-parallelenumerable-asparallel(system-collections-ienumerable)" data-linktype="relative-path">AsParallel(IEnumerable)</a> </td> <td class="has-text-wrap"> Enables parallelization of a query. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.parallelenumerable.asparallel?view=net-9.0#system-linq-parallelenumerable-asparallel-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">AsParallel<TSource>(IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Enables parallelization of a query. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.aggregate?view=net-9.0#system-linq-queryable-aggregate-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-0-0)))))" data-linktype="relative-path">Aggregate<TSource>(IQueryable<TSource>, Expression<Func<TSource,TSource,TSource>>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.aggregate?view=net-9.0#system-linq-queryable-aggregate-2(system-linq-iqueryable((-0))-1-system-linq-expressions-expression((system-func((-1-0-1)))))" data-linktype="relative-path">Aggregate<TSource,TAccumulate>(IQueryable<TSource>, TAccumulate, Expression<Func<TAccumulate,TSource,TAccumulate>>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.aggregate?view=net-9.0#system-linq-queryable-aggregate-3(system-linq-iqueryable((-0))-1-system-linq-expressions-expression((system-func((-1-0-1))))-system-linq-expressions-expression((system-func((-1-2)))))" data-linktype="relative-path">Aggregate<TSource,TAccumulate,TResult>(IQueryable<TSource>, TAccumulate, Expression<Func<TAccumulate,TSource,TAccumulate>>, Expression<Func<TAccumulate, TResult>>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence. The specified seed value is used as the initial accumulator value, and the specified function is used to select the result value. </td> </tr> <tr data-moniker=" net-9.0 "> <td> <a class="xref" href="system.linq.queryable.aggregateby?view=net-9.0#system-linq-queryable-aggregateby-3(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-2-system-linq-expressions-expression((system-func((-2-0-2))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">AggregateBy<TSource,TKey,TAccumulate>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, TAccumulate, Expression<Func<TAccumulate,TSource,TAccumulate>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence, grouping results by key. </td> </tr> <tr data-moniker=" net-9.0 "> <td> <a class="xref" href="system.linq.queryable.aggregateby?view=net-9.0#system-linq-queryable-aggregateby-3(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-linq-expressions-expression((system-func((-1-2))))-system-linq-expressions-expression((system-func((-2-0-2))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">AggregateBy<TSource,TKey,TAccumulate>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TKey,TAccumulate>>, Expression<Func<TAccumulate, TSource,TAccumulate>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Applies an accumulator function over a sequence, grouping results by key. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.all?view=net-9.0#system-linq-queryable-all-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">All<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Determines whether all the elements of a sequence satisfy a condition. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.any?view=net-9.0#system-linq-queryable-any-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">Any<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Determines whether any element of a sequence satisfies a condition. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.any?view=net-9.0#system-linq-queryable-any-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Any<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Determines whether a sequence contains any elements. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.append?view=net-9.0#system-linq-queryable-append-1(system-linq-iqueryable((-0))-0)" data-linktype="relative-path">Append<TSource>(IQueryable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns a new queryable sequence that contains the elements from <code data-dev-comment-type="paramref">source</code> plus the specified <code data-dev-comment-type="paramref">element</code> appended at the end. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.asqueryable?view=net-9.0#system-linq-queryable-asqueryable(system-collections-ienumerable)" data-linktype="relative-path">AsQueryable(IEnumerable)</a> </td> <td class="has-text-wrap"> Converts an <a class="no-loc" href="system.collections.ienumerable?view=net-9.0" data-linktype="relative-path">IEnumerable</a> to an <a class="no-loc" href="system.linq.iqueryable?view=net-9.0" data-linktype="relative-path">IQueryable</a>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.asqueryable?view=net-9.0#system-linq-queryable-asqueryable-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">AsQueryable<TElement>(IEnumerable<TElement>)</a> </td> <td class="has-text-wrap"> Converts a generic <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> to a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-decimal)))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-double)))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int32)))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int64)))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-decimal)))))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-double)))))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-int32)))))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-int64)))))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-single)))))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of nullable <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.average?view=net-9.0#system-linq-queryable-average-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-single)))))" data-linktype="relative-path">Average<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>)</a> </td> <td class="has-text-wrap"> Computes the average of a sequence of <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.cast?view=net-9.0#system-linq-queryable-cast-1(system-linq-iqueryable)" data-linktype="relative-path">Cast<TResult>(IQueryable)</a> </td> <td class="has-text-wrap"> Converts the elements of an <a class="no-loc" href="system.linq.iqueryable?view=net-9.0" data-linktype="relative-path">IQueryable</a> to the specified type. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.chunk?view=net-9.0#system-linq-queryable-chunk-1(system-linq-iqueryable((-0))-system-int32)" data-linktype="relative-path">Chunk<TSource>(IQueryable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Split the elements of a sequence into chunks of size at most <code data-dev-comment-type="paramref">size</code>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.concat?view=net-9.0#system-linq-queryable-concat-1(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Concat<TSource>(IQueryable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Concatenates two sequences. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.contains?view=net-9.0#system-linq-queryable-contains-1(system-linq-iqueryable((-0))-0-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Contains<TSource>(IQueryable<TSource>, TSource, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Determines whether a sequence contains a specified element by using a specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.contains?view=net-9.0#system-linq-queryable-contains-1(system-linq-iqueryable((-0))-0)" data-linktype="relative-path">Contains<TSource>(IQueryable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Determines whether a sequence contains a specified element by using the default equality comparer. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.count?view=net-9.0#system-linq-queryable-count-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">Count<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns the number of elements in the specified sequence that satisfies a condition. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.count?view=net-9.0#system-linq-queryable-count-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Count<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the number of elements in a sequence. </td> </tr> <tr data-moniker=" net-9.0 "> <td> <a class="xref" href="system.linq.queryable.countby?view=net-9.0#system-linq-queryable-countby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">CountBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Returns the count of each element from a sequence according to a specified key selector function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.defaultifempty?view=net-9.0#system-linq-queryable-defaultifempty-1(system-linq-iqueryable((-0))-0)" data-linktype="relative-path">DefaultIfEmpty<TSource>(IQueryable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns the elements of the specified sequence or the specified value in a singleton collection if the sequence is empty. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.defaultifempty?view=net-9.0#system-linq-queryable-defaultifempty-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">DefaultIfEmpty<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the elements of the specified sequence or the type parameter's default value in a singleton collection if the sequence is empty. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.distinct?view=net-9.0#system-linq-queryable-distinct-1(system-linq-iqueryable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Distinct<TSource>(IQueryable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Returns distinct elements from a sequence by using a specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> to compare values. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.distinct?view=net-9.0#system-linq-queryable-distinct-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Distinct<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns distinct elements from a sequence by using the default equality comparer to compare values. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.distinctby?view=net-9.0#system-linq-queryable-distinctby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">DistinctBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Returns distinct elements from a sequence according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.distinctby?view=net-9.0#system-linq-queryable-distinctby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">DistinctBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)</a> </td> <td class="has-text-wrap"> Returns distinct elements from a sequence according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.elementat?view=net-9.0#system-linq-queryable-elementat-1(system-linq-iqueryable((-0))-system-index)" data-linktype="relative-path">ElementAt<TSource>(IQueryable<TSource>, Index)</a> </td> <td class="has-text-wrap"> Returns the element at a specified index in a sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.elementat?view=net-9.0#system-linq-queryable-elementat-1(system-linq-iqueryable((-0))-system-int32)" data-linktype="relative-path">ElementAt<TSource>(IQueryable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns the element at a specified index in a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.elementatordefault?view=net-9.0#system-linq-queryable-elementatordefault-1(system-linq-iqueryable((-0))-system-index)" data-linktype="relative-path">ElementAtOrDefault<TSource>(IQueryable<TSource>, Index)</a> </td> <td class="has-text-wrap"> Returns the element at a specified index in a sequence or a default value if the index is out of range. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.elementatordefault?view=net-9.0#system-linq-queryable-elementatordefault-1(system-linq-iqueryable((-0))-system-int32)" data-linktype="relative-path">ElementAtOrDefault<TSource>(IQueryable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns the element at a specified index in a sequence or a default value if the index is out of range. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.except?view=net-9.0#system-linq-queryable-except-1(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Except<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set difference of two sequences by using the specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> to compare values. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.except?view=net-9.0#system-linq-queryable-except-1(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Except<TSource>(IQueryable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set difference of two sequences by using the default equality comparer to compare values. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.exceptby?view=net-9.0#system-linq-queryable-exceptby-2(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">ExceptBy<TSource,TKey>(IQueryable<TSource>, IEnumerable<TKey>, Expression<Func<TSource,TKey>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Produces the set difference of two sequences according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.exceptby?view=net-9.0#system-linq-queryable-exceptby-2(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">ExceptBy<TSource,TKey>(IQueryable<TSource>, IEnumerable<TKey>, Expression<Func<TSource,TKey>>)</a> </td> <td class="has-text-wrap"> Produces the set difference of two sequences according to a specified key selector function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.first?view=net-9.0#system-linq-queryable-first-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">First<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns the first element of a sequence that satisfies a specified condition. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.first?view=net-9.0#system-linq-queryable-first-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">First<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the first element of a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.firstordefault?view=net-9.0#system-linq-queryable-firstordefault-1(system-linq-iqueryable((-0))-0)" data-linktype="relative-path">FirstOrDefault<TSource>(IQueryable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns the first element of a sequence, or a default value if the sequence contains no elements. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.firstordefault?view=net-9.0#system-linq-queryable-firstordefault-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean))))-0)" data-linktype="relative-path">FirstOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>, TSource)</a> </td> <td class="has-text-wrap"> Returns the first element of the sequence that satisfies a condition or a default value if no such element is found. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.firstordefault?view=net-9.0#system-linq-queryable-firstordefault-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">FirstOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns the first element of a sequence that satisfies a specified condition or a default value if no such element is found. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.firstordefault?view=net-9.0#system-linq-queryable-firstordefault-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">FirstOrDefault<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the first element of a sequence, or a default value if the sequence contains no elements. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupby?view=net-9.0#system-linq-queryable-groupby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">GroupBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupby?view=net-9.0#system-linq-queryable-groupby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">GroupBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupby?view=net-9.0#system-linq-queryable-groupby-3(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-linq-expressions-expression((system-func((-0-2))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">GroupBy<TSource,TKey,TElement>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TSource,TElement>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence and projects the elements for each group by using a specified function. Key values are compared by using a specified comparer. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupby?view=net-9.0#system-linq-queryable-groupby-3(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-linq-expressions-expression((system-func((-0-2)))))" data-linktype="relative-path">GroupBy<TSource,TKey,TElement>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TSource,TElement>>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupby?view=net-9.0#system-linq-queryable-groupby-3(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-linq-expressions-expression((system-func((-1-system-collections-generic-ienumerable((-0))-2))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">GroupBy<TSource,TKey,TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TKey,IEnumerable<TSource>,TResult>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Keys are compared by using a specified comparer. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupby?view=net-9.0#system-linq-queryable-groupby-3(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-linq-expressions-expression((system-func((-1-system-collections-generic-ienumerable((-0))-2)))))" data-linktype="relative-path">GroupBy<TSource,TKey,TResult>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, Expression<Func<TKey,IEnumerable<TSource>,TResult>>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupby?view=net-9.0#system-linq-queryable-groupby-4(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-linq-expressions-expression((system-func((-0-2))))-system-linq-expressions-expression((system-func((-1-system-collections-generic-ienumerable((-2))-3))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">GroupBy<TSource,TKey,TElement,TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TSource,TElement>>, Expression<Func<TKey, IEnumerable<TElement>,TResult>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Keys are compared by using a specified comparer and the elements of each group are projected by using a specified function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupby?view=net-9.0#system-linq-queryable-groupby-4(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-linq-expressions-expression((system-func((-0-2))))-system-linq-expressions-expression((system-func((-1-system-collections-generic-ienumerable((-2))-3)))))" data-linktype="relative-path">GroupBy<TSource,TKey,TElement,TResult>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TSource,TElement>>, Expression<Func<TKey, IEnumerable<TElement>,TResult>>)</a> </td> <td class="has-text-wrap"> Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupjoin?view=net-9.0#system-linq-queryable-groupjoin-4(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-linq-expressions-expression((system-func((-0-2))))-system-linq-expressions-expression((system-func((-1-2))))-system-linq-expressions-expression((system-func((-0-system-collections-generic-ienumerable((-1))-3))))-system-collections-generic-iequalitycomparer((-2)))" data-linktype="relative-path">GroupJoin<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,IEnumerable<TInner>,TResult>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Correlates the elements of two sequences based on key equality and groups the results. A specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> is used to compare keys. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.groupjoin?view=net-9.0#system-linq-queryable-groupjoin-4(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-linq-expressions-expression((system-func((-0-2))))-system-linq-expressions-expression((system-func((-1-2))))-system-linq-expressions-expression((system-func((-0-system-collections-generic-ienumerable((-1))-3)))))" data-linktype="relative-path">GroupJoin<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,IEnumerable<TInner>,TResult>>)</a> </td> <td class="has-text-wrap"> Correlates the elements of two sequences based on key equality and groups the results. The default equality comparer is used to compare keys. </td> </tr> <tr data-moniker=" net-9.0 "> <td> <a class="xref" href="system.linq.queryable.index?view=net-9.0#system-linq-queryable-index-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Index<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Return index and the associated item. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.intersect?view=net-9.0#system-linq-queryable-intersect-1(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set intersection of two sequences by using the specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> to compare values. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.intersect?view=net-9.0#system-linq-queryable-intersect-1(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Intersect<TSource>(IQueryable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set intersection of two sequences by using the default equality comparer to compare values. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.intersectby?view=net-9.0#system-linq-queryable-intersectby-2(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">IntersectBy<TSource,TKey>(IQueryable<TSource>, IEnumerable<TKey>, Expression<Func<TSource,TKey>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Produces the set intersection of two sequences according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.intersectby?view=net-9.0#system-linq-queryable-intersectby-2(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">IntersectBy<TSource,TKey>(IQueryable<TSource>, IEnumerable<TKey>, Expression<Func<TSource,TKey>>)</a> </td> <td class="has-text-wrap"> Produces the set intersection of two sequences according to a specified key selector function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.join?view=net-9.0#system-linq-queryable-join-4(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-linq-expressions-expression((system-func((-0-2))))-system-linq-expressions-expression((system-func((-1-2))))-system-linq-expressions-expression((system-func((-0-1-3))))-system-collections-generic-iequalitycomparer((-2)))" data-linktype="relative-path">Join<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,TInner,TResult>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Correlates the elements of two sequences based on matching keys. A specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> is used to compare keys. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.join?view=net-9.0#system-linq-queryable-join-4(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-linq-expressions-expression((system-func((-0-2))))-system-linq-expressions-expression((system-func((-1-2))))-system-linq-expressions-expression((system-func((-0-1-3)))))" data-linktype="relative-path">Join<TOuter,TInner,TKey,TResult>(IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter,TKey>>, Expression<Func<TInner,TKey>>, Expression<Func<TOuter,TInner,TResult>>)</a> </td> <td class="has-text-wrap"> Correlates the elements of two sequences based on matching keys. The default equality comparer is used to compare keys. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.last?view=net-9.0#system-linq-queryable-last-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">Last<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence that satisfies a specified condition. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.last?view=net-9.0#system-linq-queryable-last-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Last<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the last element in a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.lastordefault?view=net-9.0#system-linq-queryable-lastordefault-1(system-linq-iqueryable((-0))-0)" data-linktype="relative-path">LastOrDefault<TSource>(IQueryable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence, or a default value if the sequence contains no elements. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.lastordefault?view=net-9.0#system-linq-queryable-lastordefault-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean))))-0)" data-linktype="relative-path">LastOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>, TSource)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence that satisfies a condition or a default value if no such element is found. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.lastordefault?view=net-9.0#system-linq-queryable-lastordefault-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">LastOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns the last element of a sequence that satisfies a condition or a default value if no such element is found. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.lastordefault?view=net-9.0#system-linq-queryable-lastordefault-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">LastOrDefault<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the last element in a sequence, or a default value if the sequence contains no elements. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.longcount?view=net-9.0#system-linq-queryable-longcount-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">LongCount<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns an <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> that represents the number of elements in a sequence that satisfy a condition. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.longcount?view=net-9.0#system-linq-queryable-longcount-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">LongCount<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns an <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> that represents the total number of elements in a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.max?view=net-9.0#system-linq-queryable-max-1(system-linq-iqueryable((-0))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">Max<TSource>(IQueryable<TSource>, IComparer<TSource>)</a> </td> <td class="has-text-wrap"> Returns the maximum value in a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.max?view=net-9.0#system-linq-queryable-max-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Max<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the maximum value in a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.max?view=net-9.0#system-linq-queryable-max-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">Max<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)</a> </td> <td class="has-text-wrap"> Invokes a projection function on each element of a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a> and returns the maximum resulting value. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.maxby?view=net-9.0#system-linq-queryable-maxby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">MaxBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TSource>)</a> </td> <td class="has-text-wrap"> Returns the maximum value in a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a> according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.maxby?view=net-9.0#system-linq-queryable-maxby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">MaxBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)</a> </td> <td class="has-text-wrap"> Returns the maximum value in a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a> according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.min?view=net-9.0#system-linq-queryable-min-1(system-linq-iqueryable((-0))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">Min<TSource>(IQueryable<TSource>, IComparer<TSource>)</a> </td> <td class="has-text-wrap"> Returns the minimum value in a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.min?view=net-9.0#system-linq-queryable-min-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Min<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the minimum value of a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.min?view=net-9.0#system-linq-queryable-min-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">Min<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)</a> </td> <td class="has-text-wrap"> Invokes a projection function on each element of a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a> and returns the minimum resulting value. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.minby?view=net-9.0#system-linq-queryable-minby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">MinBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TSource>)</a> </td> <td class="has-text-wrap"> Returns the minimum value in a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a> according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.minby?view=net-9.0#system-linq-queryable-minby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">MinBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)</a> </td> <td class="has-text-wrap"> Returns the minimum value in a generic <a class="no-loc" href="system.linq.iqueryable-1?view=net-9.0" data-linktype="relative-path">IQueryable<T></a> according to a specified key selector function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.oftype?view=net-9.0#system-linq-queryable-oftype-1(system-linq-iqueryable)" data-linktype="relative-path">OfType<TResult>(IQueryable)</a> </td> <td class="has-text-wrap"> Filters the elements of an <a class="no-loc" href="system.linq.iqueryable?view=net-9.0" data-linktype="relative-path">IQueryable</a> based on a specified type. </td> </tr> <tr data-moniker=" net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.order?view=net-9.0#system-linq-queryable-order-1(system-linq-iqueryable((-0))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">Order<T>(IQueryable<T>, IComparer<T>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in ascending order. </td> </tr> <tr data-moniker=" net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.order?view=net-9.0#system-linq-queryable-order-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Order<T>(IQueryable<T>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in ascending order. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.orderby?view=net-9.0#system-linq-queryable-orderby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-icomparer((-1)))" data-linktype="relative-path">OrderBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TKey>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in ascending order by using a specified comparer. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.orderby?view=net-9.0#system-linq-queryable-orderby-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">OrderBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in ascending order according to a key. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.orderbydescending?view=net-9.0#system-linq-queryable-orderbydescending-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-icomparer((-1)))" data-linktype="relative-path">OrderByDescending<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TKey>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in descending order by using a specified comparer. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.orderbydescending?view=net-9.0#system-linq-queryable-orderbydescending-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">OrderByDescending<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in descending order according to a key. </td> </tr> <tr data-moniker=" net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.orderdescending?view=net-9.0#system-linq-queryable-orderdescending-1(system-linq-iqueryable((-0))-system-collections-generic-icomparer((-0)))" data-linktype="relative-path">OrderDescending<T>(IQueryable<T>, IComparer<T>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in descending order. </td> </tr> <tr data-moniker=" net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.orderdescending?view=net-9.0#system-linq-queryable-orderdescending-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">OrderDescending<T>(IQueryable<T>)</a> </td> <td class="has-text-wrap"> Sorts the elements of a sequence in descending order. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.prepend?view=net-9.0#system-linq-queryable-prepend-1(system-linq-iqueryable((-0))-0)" data-linktype="relative-path">Prepend<TSource>(IQueryable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns a new queryable sequence that contains the elements from <code data-dev-comment-type="paramref">source</code> plus the specified <code data-dev-comment-type="paramref">element</code> prepended at the beginning. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.reverse?view=net-9.0#system-linq-queryable-reverse-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Reverse<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Inverts the order of the elements in a sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.select?view=net-9.0#system-linq-queryable-select-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">Select<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence into a new form. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.select?view=net-9.0#system-linq-queryable-select-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int32-1)))))" data-linktype="relative-path">Select<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,Int32,TResult>>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence into a new form by incorporating the element's index. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.selectmany?view=net-9.0#system-linq-queryable-selectmany-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-collections-generic-ienumerable((-1)))))))" data-linktype="relative-path">SelectMany<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,IEnumerable<TResult>>>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence to an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> and combines the resulting sequences into one sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.selectmany?view=net-9.0#system-linq-queryable-selectmany-2(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int32-system-collections-generic-ienumerable((-1)))))))" data-linktype="relative-path">SelectMany<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,Int32,IEnumerable<TResult>>>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence to an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> and combines the resulting sequences into one sequence. The index of each source element is used in the projected form of that element. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.selectmany?view=net-9.0#system-linq-queryable-selectmany-3(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-collections-generic-ienumerable((-1))))))-system-linq-expressions-expression((system-func((-0-1-2)))))" data-linktype="relative-path">SelectMany<TSource,TCollection,TResult>(IQueryable<TSource>, Expression<Func<TSource, IEnumerable<TCollection>>>, Expression<Func<TSource,TCollection, TResult>>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence to an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> and invokes a result selector function on each element therein. The resulting values from each intermediate sequence are combined into a single, one-dimensional sequence and returned. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.selectmany?view=net-9.0#system-linq-queryable-selectmany-3(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int32-system-collections-generic-ienumerable((-1))))))-system-linq-expressions-expression((system-func((-0-1-2)))))" data-linktype="relative-path">SelectMany<TSource,TCollection,TResult>(IQueryable<TSource>, Expression<Func<TSource, Int32,IEnumerable<TCollection>>>, Expression<Func<TSource,TCollection, TResult>>)</a> </td> <td class="has-text-wrap"> Projects each element of a sequence to an <a class="no-loc" href="system.collections.generic.ienumerable-1?view=net-9.0" data-linktype="relative-path">IEnumerable<T></a> that incorporates the index of the source element that produced it. A result selector function is invoked on each element of each intermediate sequence, and the resulting values are combined into a single, one-dimensional sequence and returned. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sequenceequal?view=net-9.0#system-linq-queryable-sequenceequal-1(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Determines whether two sequences are equal by using a specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a> to compare elements. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sequenceequal?view=net-9.0#system-linq-queryable-sequenceequal-1(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">SequenceEqual<TSource>(IQueryable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Determines whether two sequences are equal by using the default equality comparer to compare elements. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.single?view=net-9.0#system-linq-queryable-single-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">Single<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.single?view=net-9.0#system-linq-queryable-single-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">Single<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.singleordefault?view=net-9.0#system-linq-queryable-singleordefault-1(system-linq-iqueryable((-0))-0)" data-linktype="relative-path">SingleOrDefault<TSource>(IQueryable<TSource>, TSource)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.singleordefault?view=net-9.0#system-linq-queryable-singleordefault-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean))))-0)" data-linktype="relative-path">SingleOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>, TSource)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.singleordefault?view=net-9.0#system-linq-queryable-singleordefault-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">SingleOrDefault<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence that satisfies a specified condition or a default value if no such element exists; this method throws an exception if more than one element satisfies the condition. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.singleordefault?view=net-9.0#system-linq-queryable-singleordefault-1(system-linq-iqueryable((-0)))" data-linktype="relative-path">SingleOrDefault<TSource>(IQueryable<TSource>)</a> </td> <td class="has-text-wrap"> Returns the only element of a sequence, or a default value if the sequence is empty; this method throws an exception if there is more than one element in the sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.skip?view=net-9.0#system-linq-queryable-skip-1(system-linq-iqueryable((-0))-system-int32)" data-linktype="relative-path">Skip<TSource>(IQueryable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Bypasses a specified number of elements in a sequence and then returns the remaining elements. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.skiplast?view=net-9.0#system-linq-queryable-skiplast-1(system-linq-iqueryable((-0))-system-int32)" data-linktype="relative-path">SkipLast<TSource>(IQueryable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns a new queryable sequence that contains the elements from <code data-dev-comment-type="paramref">source</code> with the last <code data-dev-comment-type="paramref">count</code> elements of the source queryable sequence omitted. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.skipwhile?view=net-9.0#system-linq-queryable-skipwhile-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">SkipWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.skipwhile?view=net-9.0#system-linq-queryable-skipwhile-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int32-system-boolean)))))" data-linktype="relative-path">SkipWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32,Boolean>>)</a> </td> <td class="has-text-wrap"> Bypasses elements in a sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-decimal)))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-double)))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int32)))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int64)))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-decimal)))))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.decimal?view=net-9.0" data-linktype="relative-path">Decimal</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-double)))))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.double?view=net-9.0" data-linktype="relative-path">Double</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-int32)))))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.int32?view=net-9.0" data-linktype="relative-path">Int32</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-int64)))))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.int64?view=net-9.0" data-linktype="relative-path">Int64</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-nullable((system-single)))))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of nullable <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.sum?view=net-9.0#system-linq-queryable-sum-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-single)))))" data-linktype="relative-path">Sum<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>)</a> </td> <td class="has-text-wrap"> Computes the sum of the sequence of <a class="no-loc" href="system.single?view=net-9.0" data-linktype="relative-path">Single</a> values that is obtained by invoking a projection function on each element of the input sequence. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.take?view=net-9.0#system-linq-queryable-take-1(system-linq-iqueryable((-0))-system-int32)" data-linktype="relative-path">Take<TSource>(IQueryable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns a specified number of contiguous elements from the start of a sequence. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.take?view=net-9.0#system-linq-queryable-take-1(system-linq-iqueryable((-0))-system-range)" data-linktype="relative-path">Take<TSource>(IQueryable<TSource>, Range)</a> </td> <td class="has-text-wrap"> Returns a specified range of contiguous elements from a sequence. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.takelast?view=net-9.0#system-linq-queryable-takelast-1(system-linq-iqueryable((-0))-system-int32)" data-linktype="relative-path">TakeLast<TSource>(IQueryable<TSource>, Int32)</a> </td> <td class="has-text-wrap"> Returns a new queryable sequence that contains the last <code data-dev-comment-type="paramref">count</code> elements from <code data-dev-comment-type="paramref">source</code>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.takewhile?view=net-9.0#system-linq-queryable-takewhile-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">TakeWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns elements from a sequence as long as a specified condition is true. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.takewhile?view=net-9.0#system-linq-queryable-takewhile-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int32-system-boolean)))))" data-linktype="relative-path">TakeWhile<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32,Boolean>>)</a> </td> <td class="has-text-wrap"> Returns elements from a sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.union?view=net-9.0#system-linq-queryable-union-1(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0))-system-collections-generic-iequalitycomparer((-0)))" data-linktype="relative-path">Union<TSource>(IQueryable<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set union of two sequences by using a specified <a class="no-loc" href="system.collections.generic.iequalitycomparer-1?view=net-9.0" data-linktype="relative-path">IEqualityComparer<T></a>. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.union?view=net-9.0#system-linq-queryable-union-1(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Union<TSource>(IQueryable<TSource>, IEnumerable<TSource>)</a> </td> <td class="has-text-wrap"> Produces the set union of two sequences by using the default equality comparer. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.unionby?view=net-9.0#system-linq-queryable-unionby-2(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0))-system-linq-expressions-expression((system-func((-0-1))))-system-collections-generic-iequalitycomparer((-1)))" data-linktype="relative-path">UnionBy<TSource,TKey>(IQueryable<TSource>, IEnumerable<TSource>, Expression<Func<TSource,TKey>>, IEqualityComparer<TKey>)</a> </td> <td class="has-text-wrap"> Produces the set union of two sequences according to a specified key selector function. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.unionby?view=net-9.0#system-linq-queryable-unionby-2(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-0))-system-linq-expressions-expression((system-func((-0-1)))))" data-linktype="relative-path">UnionBy<TSource,TKey>(IQueryable<TSource>, IEnumerable<TSource>, Expression<Func<TSource,TKey>>)</a> </td> <td class="has-text-wrap"> Produces the set union of two sequences according to a specified key selector function. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.where?view=net-9.0#system-linq-queryable-where-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-boolean)))))" data-linktype="relative-path">Where<TSource>(IQueryable<TSource>, Expression<Func<TSource,Boolean>>)</a> </td> <td class="has-text-wrap"> Filters a sequence of values based on a predicate. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-3.5 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.where?view=net-9.0#system-linq-queryable-where-1(system-linq-iqueryable((-0))-system-linq-expressions-expression((system-func((-0-system-int32-system-boolean)))))" data-linktype="relative-path">Where<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32,Boolean>>)</a> </td> <td class="has-text-wrap"> Filters a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function. </td> </tr> <tr data-moniker=" net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-3.0 netcore-3.1 "> <td> <a class="xref" href="system.linq.queryable.zip?view=net-9.0#system-linq-queryable-zip-2(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1)))" data-linktype="relative-path">Zip<TFirst,TSecond>(IQueryable<TFirst>, IEnumerable<TSecond>)</a> </td> <td class="has-text-wrap"> Produces a sequence of tuples with elements from the two specified sequences. </td> </tr> <tr data-moniker=" net-6.0 net-7.0 net-8.0 net-9.0 "> <td> <a class="xref" href="system.linq.queryable.zip?view=net-9.0#system-linq-queryable-zip-3(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-collections-generic-ienumerable((-2)))" data-linktype="relative-path">Zip<TFirst,TSecond,TThird>(IQueryable<TFirst>, IEnumerable<TSecond>, IEnumerable<TThird>)</a> </td> <td class="has-text-wrap"> Produces a sequence of tuples with elements from the three specified sequences. </td> </tr> <tr data-moniker=" dotnet-uwp-10.0 net-5.0 net-6.0 net-7.0 net-8.0 net-9.0 netcore-1.0 netcore-1.1 netcore-2.0 netcore-2.1 netcore-2.2 netcore-3.0 netcore-3.1 netframework-4.0 netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 netstandard-2.0 netstandard-2.1 "> <td> <a class="xref" href="system.linq.queryable.zip?view=net-9.0#system-linq-queryable-zip-3(system-linq-iqueryable((-0))-system-collections-generic-ienumerable((-1))-system-linq-expressions-expression((system-func((-0-1-2)))))" data-linktype="relative-path">Zip<TFirst,TSecond,TResult>(IQueryable<TFirst>, IEnumerable<TSecond>, Expression<Func<TFirst,TSecond,TResult>>)</a> </td> <td class="has-text-wrap"> Merges two sequences by using the specified predicate function. </td> </tr> <tr data-moniker=" netframework-4.5 netframework-4.5.1 netframework-4.5.2 netframework-4.6 netframework-4.6.1 netframework-4.6.2 netframework-4.7 netframework-4.7.1 netframework-4.7.2 netframework-4.8 netframework-4.8.1 "> <td> <a class="xref" href="system.web.ui.webcontrols.queryextensions.sortby?view=net-9.0#system-web-ui-webcontrols-queryextensions-sortby-1(system-linq-iqueryable((-0))-system-string)" data-linktype="relative-path">SortBy<T>(IQueryable<T>, String)</a> </td> <td class="has-text-wrap"> Specifies a sort order. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.ancestors?view=net-9.0#system-xml-linq-extensions-ancestors-1(system-collections-generic-ienumerable((-0))-system-xml-linq-xname)" data-linktype="relative-path">Ancestors<T>(IEnumerable<T>, XName)</a> </td> <td class="has-text-wrap"> Returns a filtered collection of elements that contains the ancestors of every node in the source collection. Only elements that have a matching <a class="no-loc" href="system.xml.linq.xname?view=net-9.0" data-linktype="relative-path">XName</a> are included in the collection. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.ancestors?view=net-9.0#system-xml-linq-extensions-ancestors-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Ancestors<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Returns a collection of elements that contains the ancestors of every node in the source collection. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.descendantnodes?view=net-9.0#system-xml-linq-extensions-descendantnodes-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">DescendantNodes<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Returns a collection of the descendant nodes of every document and element in the source collection. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.descendants?view=net-9.0#system-xml-linq-extensions-descendants-1(system-collections-generic-ienumerable((-0))-system-xml-linq-xname)" data-linktype="relative-path">Descendants<T>(IEnumerable<T>, XName)</a> </td> <td class="has-text-wrap"> Returns a filtered collection of elements that contains the descendant elements of every element and document in the source collection. Only elements that have a matching <a class="no-loc" href="system.xml.linq.xname?view=net-9.0" data-linktype="relative-path">XName</a> are included in the collection. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.descendants?view=net-9.0#system-xml-linq-extensions-descendants-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Descendants<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Returns a collection of elements that contains the descendant elements of every element and document in the source collection. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.elements?view=net-9.0#system-xml-linq-extensions-elements-1(system-collections-generic-ienumerable((-0))-system-xml-linq-xname)" data-linktype="relative-path">Elements<T>(IEnumerable<T>, XName)</a> </td> <td class="has-text-wrap"> Returns a filtered collection of the child elements of every element and document in the source collection. Only elements that have a matching <a class="no-loc" href="system.xml.linq.xname?view=net-9.0" data-linktype="relative-path">XName</a> are included in the collection. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.elements?view=net-9.0#system-xml-linq-extensions-elements-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Elements<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Returns a collection of the child elements of every element and document in the source collection. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.indocumentorder?view=net-9.0#system-xml-linq-extensions-indocumentorder-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">InDocumentOrder<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Returns a collection of nodes that contains all nodes in the source collection, sorted in document order. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.nodes?view=net-9.0#system-xml-linq-extensions-nodes-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Nodes<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Returns a collection of the child nodes of every document and element in the source collection. </td> </tr> <tr> <td> <a class="xref" href="system.xml.linq.extensions.remove?view=net-9.0#system-xml-linq-extensions-remove-1(system-collections-generic-ienumerable((-0)))" data-linktype="relative-path">Remove<T>(IEnumerable<T>)</a> </td> <td class="has-text-wrap"> Removes every node in the source collection from its parent node. </td> </tr> </tbody></table> <h2>Applies to</h2> <div class="table-wrapper moniker-applies-to-table"> <table class="table table-complex has-row-header-background"> <thead> </thead> </table> </div> <h2 id="see-also">See also</h2> <ul> <li><a href="system.linq.queryable?view=net-9.0" class="no-loc" data-linktype="relative-path">Queryable</a></li> </ul> </div><div id="ms--inline-notifications" class="margin-block-xs" data-bi-name="inline-notification"></div><div id="assertive-live-region" role="alert" aria-live="assertive" class="visually-hidden" aria-relevant="additions" aria-atomic="true"></div> <div id="polite-live-region" role="status" aria-live="polite" class="visually-hidden" aria-relevant="additions" aria-atomic="true"></div>  </main> <section class="feedback-section position-relative margin-top-lg border border-radius padding-xxs" data-bi-name="open-source-feedback-section" data-open-source-feedback-section hidden> <div class="display-flex flex-direction-column flex-direction-row-tablet"> <div class="width-450-tablet padding-inline-xs padding-inline-xs-tablet padding-top-xs padding-bottom-sm padding-top-xs-tablet background-color-body-medium"> <div class="display-flex flex-direction-column"> <div class="padding-bottom-xxs"> Collaborate with us on GitHub </div> The source for this content can be found on GitHub, where you can also create and review issues and pull requests. 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