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Object reference not set to an instance of an object.
<!DOCTYPE html> <html> <head> <title>Object reference not set to an instance of an object.</title> <meta name="viewport" content="width=device-width" /> <style> body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;} p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px} b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px} H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red } H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon } pre {font-family:"Consolas","Lucida Console",Monospace;font-size:11pt;margin:0;padding:0.5em;line-height:14pt} .marker {font-weight: bold; color: black;text-decoration: none;} .version {color: gray;} .error {margin-bottom: 10px;} .expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; } @media screen and (max-width: 639px) { pre { width: 440px; overflow: auto; white-space: pre-wrap; word-wrap: break-word; } } @media screen and (max-width: 479px) { pre { width: 280px; } } </style> </head> <body bgcolor="white"> <span><H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1> <h2> <i>Object reference not set to an instance of an object.</i> </h2></span> <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif "> <b> Description: </b>An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. <br><br> <b> Exception Details: </b>System.NullReferenceException: Object reference not set to an instance of an object.<br><br> <b>Source Error:</b> <br><br> <table width=100% bgcolor="#ffffcc"> <tr> <td> <code> An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.</code> </td> </tr> </table> <br> <b>Stack Trace:</b> <br><br> <table width=100% bgcolor="#ffffcc"> <tr> <td> <code><pre> [NullReferenceException: Object reference not set to an instance of an object.] Transtat_podstawa.DataProvider.GenerateDashboardCards() +82 Transtat_podstawa.DataProvider.GetSampleData(Func`1 generateData) +126 [TargetInvocationException: Exception has been thrown by the target of an invocation.] System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) +0 System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) +260 System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +142 System.Web.UI.WebControls.ObjectDataSourceView.InvokeMethod(ObjectDataSourceMethod method, Boolean disposeInstance, Object& instance) +889 System.Web.UI.WebControls.ObjectDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +1829 System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +26 DevExpress.Web.Internal.DataContainer.PerformSelect() +151 DevExpress.Web.ASPxDataWebControlBase.DataBindInternal() +166 DevExpress.Web.ASPxWebControl.DataBind() +50 DevExpress.Web.Internal.DataHelperBase.EnsureDataBound(Boolean ensureChildControls) +74 DevExpress.Web.Internal.DataContainer.EnsureDataBound() +154 DevExpress.Web.ASPxDataWebControlBase.OnPreRender(EventArgs e) +26 System.Web.UI.Control.PreRenderRecursiveInternal() +162 System.Web.UI.Control.PreRenderRecursiveInternal() +256 System.Web.UI.Control.PreRenderRecursiveInternal() +256 System.Web.UI.Control.PreRenderRecursiveInternal() +256 System.Web.UI.Control.PreRenderRecursiveInternal() +256 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6875 </pre></code> </td> </tr> </table> <br> <hr width=100% size=1 color=silver> <b>Version Information:</b> Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4092.0 </font> </body> </html> <!-- [NullReferenceException]: Object reference not set to an instance of an object. at Transtat_podstawa.DataProvider.GenerateDashboardCards() at Transtat_podstawa.DataProvider.GetSampleData[T](Func`1 generateData) [TargetInvocationException]: Exception has been thrown by the target of an invocation. at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.Web.UI.WebControls.ObjectDataSourceView.InvokeMethod(ObjectDataSourceMethod method, Boolean disposeInstance, Object& instance) at System.Web.UI.WebControls.ObjectDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) at DevExpress.Web.Internal.DataContainer.PerformSelect() at DevExpress.Web.ASPxDataWebControlBase.DataBindInternal() at DevExpress.Web.ASPxWebControl.DataBind() at DevExpress.Web.Internal.DataHelperBase.EnsureDataBound(Boolean ensureChildControls) at DevExpress.Web.Internal.DataContainer.EnsureDataBound() at DevExpress.Web.ASPxDataWebControlBase.OnPreRender(EventArgs e) at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) [HttpUnhandledException]: Exception of type 'System.Web.HttpUnhandledException' was thrown. at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.default_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\f7f8e4b9\717b5b6c\App_Web_default.aspx.cdcab7d2.6nhxghjz.0.cs:line 0 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --><!-- This error page might contain sensitive information because ASP.NET is configured to show verbose error messages using <customErrors mode="Off"/>. Consider using <customErrors mode="On"/> or <customErrors mode="RemoteOnly"/> in production environments.-->