Manage C# projects in Visual Studio Code

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class="hidden-xs">Edit</span> </a> </div> <h1>Project management</h1> <p>When you create a C# application in Visual Studio Code, you start with a <strong>project</strong>. A project contains all files (such as source code, images, etc.) that are compiled into an executable, library, or website. All of your related projects can then be stored in a container called a <strong>solution</strong>. This article shows you how you can maintain all your projects and their respective files via the <strong>Solution Explorer</strong> view.</p> <blockquote><p><strong>Note</strong>: The <a href="https://marketplace.visualstudio.com/items?itemName=ms-dotnettools.csdevkit" class="external-link" target="_blank">C# Dev Kit extension</a> is required to use the Solution Explorer view in VS Code.</p> </blockquote><h2 id="_solution-explorer" data-needslink="_solution-explorer">Solution Explorer</h2> <p>The new C# Dev Kit extension contains a new view in the Primary Sidebar, the <strong>Solution Explorer</strong>. This view provides a structured view of your application, its solutions, and its projects for effortless, central project management. When you open a Workspace that contains .NET solution files or project files, the Solution Explorer will automatically appear.</p> <p>If you have a single solution file (.sln file) in the workspace, the Solution Explorer will detect that file and automatically load it after the workspace is loaded. For example, take a look at the animation below showing the experience of opening a workspace with a single solution file.</p> <p><img src="/assets/docs/csharp/project-management/open-workspace-1-sln-file.gif" alt="Open workspace with 1 solution file" loading="lazy"></p> <p>In the animation above, the workspace was loaded into VS Code for the first time. After the workspace is loaded, the Solution Explorer detects the lone <code>.sln</code> file and automatically loads that.</p> <p>When you have more than one solution file in the workspace, you will be prompted to select the specific solution file to load. After a solution file is loaded for a workspace, the extension will remember which solution file was loaded last and automatically reload that file when the workspace is loaded in VS Code. In the animation below, you can see the experience of opening a workspace with multiple solution files for the first time.</p> <p><img src="/assets/docs/csharp/project-management/open-workspace-multiple-sln-files.gif" alt="Open workspace with multiple solution files" loading="lazy"></p> <p>In the video above, after the workspace is loaded, the Solution Explorer detects that the workspace contains multiple solution files and you are prompted to select the solution to load with the standard VS Code notification. Going forward when you open the same workspace, the Solution Explorer remembers which solution file was loaded last and automatically reload that.</p> <p>When you have a solution loaded in the Solution Explorer and you would like to close that solution, you can use the <strong>Close Solution</strong> command. You can find this command in the context menu when you right-click on a solution in the Solution Explorer.</p> <p><img src="/assets/docs/csharp/project-management/close-solution-context-menu.png" alt="Close solution context menu" loading="lazy"></p> <p>You can also invoke this command in the Command Palette. You can open the Command Palette with <span class="dynamic-keybinding" data-commandId="workbench.action.showCommands" data-osx="鈬р寴P" data-win="Ctrl+Shift+P" data-linux="Ctrl+Shift+P"><span class="keybinding">鈬р寴P</span> (Windows, Linux <span class="keybinding">Ctrl+Shift+P</span>)</span>. This is shown in the following image.</p> <p><img src="/assets/docs/csharp/project-management/close-solution-command-palette.png" alt="Close solution from the Command Palette" loading="lazy"></p> <p>After closing the solution, the Solution Explorer will show a button so that you can open a solution file from the workspace later. You can also invoke that command with the Command Palette with the <strong>.NET: Open Solution</strong> command.</p> <p>When you invoke the <strong>Open Solution</strong> command, if there is a single solution file in the workspace, it will automatically load that. When there are multiple solution files, you'll be prompted to select the solution file to load. This is the same experience when you first open a workspace with one, or more, solution files. Let's move on to discuss the support for Solution Folders in the Solution Explorer.</p> <h2 id="_solution-folders" data-needslink="_solution-folders">Solution Folders</h2> <p>In the Solution Explorer, if a solution contains Solution Folders (virtual folders used to group projects in a solution), they will be displayed. Here, you can interact with Solution Folder contents. To add a new Solution Folder, you can right-click the solution and select the <strong>New Solution Folder</strong> menu item. Take a look at the short video below.</p> <p><img src="/assets/docs/csharp/project-management/csdevkit-new-sln-folder.gif" alt="C# Dev Kit new solution folder" loading="lazy"></p> <p>In the video above, a new Solution Folder named "tests" was created. After creating a Solution Folder, you can add a project into it with the <strong>Add Existing Project</strong> context menu. The animation below shows this experience.</p> <p><img src="/assets/docs/csharp/project-management/add-existing-project.gif" alt="Add existing project" loading="lazy"></p> <p>You can also add a new file to the Solution Folder with the <strong>Add New File</strong> context menu shown in the following image.</p> <p><img src="/assets/docs/csharp/project-management/add-file-to-solution-folder.png" alt="Add file to solution folder" loading="lazy"></p> <p>After you invoke this command, you will be prompted to select the file template to be used in the Command Palette. The image below shows this.</p> <p><img src="/assets/docs/csharp/project-management/add-new-file-command-palette.png" alt="Add new file from Command Palette " loading="lazy"></p> <p>This list shows the file templates that the extension currently supports for Solution Folders. To create a file without using a template (to create a blank file), select <strong>Custom file (without template)</strong>.</p> <p>To remove a Solution Folder, you can use the <strong>Remove</strong> context menu option.</p> <p><img src="/assets/docs/csharp/project-management/sln-folder-delete.png" alt="Remove Solution Folder" loading="lazy"></p> <p>When you remove a Solution Folder from a solution, the Solution Folder and its contents are removed from the solution. The files, and/or projects, that it contains are not deleted from disk. Now that we've discussed Solution Folders, let's move on to see how to interact more with projects in the Solution Explorer.</p> <h2 id="_working-with-projects" data-needslink="_working-with-projects">Working with projects</h2> <p>In the Solution Explorer, there are a number of features to enable you to work with projects. When you first open a solution, you will see the projects and Solution Folders. You can expand Solution Folders or projects to see its contents. The image below shows the Solution Explorer with a few nodes expanded.</p> <p><img src="/assets/docs/csharp/project-management/sln-explorer.png" alt="Solution Explorer with expanded nodes" loading="lazy"></p> <p>In the image above, we can see the Solution Explorer with a couple Solution Folders expanded, as well as the <code>TemplatesWeb</code> project. There is minimal file nesting supported in this release, we will expand on that support to be more consistent with the file nesting that is seen in Visual Studio IDE.</p> <p>From here, you can open files by double clicking them in the Solution Explorer. You can also right-click items in the Solution Explorer to get a context specific menu for available actions. For example, to add a new file to a project, right-click on the project and select <strong>Add New File</strong>. When you select that option, you'll be prompted to choose the file template to be used for the default content. You'll get the best experience here if you are working on a project targeting .NET 7.0.200 or above.</p> <p>You can also add files into projects by creating files as you normally would in VS Code and save them under the folder containing the project file. By default, new files added to the project folder will automatically be added to the project.</p> <p>In the project view, you can also see the dependencies that the project has, both for <strong>Project References</strong> as well as <strong>Package References</strong>. In this version of the C# Dev Kit, you don't have the ability to modify the dependencies. To add a dependency to a project or package reference, you can use the <code>dotnet add</code> command line tool. To add a package reference, see <a href="https://learn.microsoft.com/dotnet/core/tools/dotnet-add-package" class="external-link" target="_blank">dotnet add package command - .NET CLI</a> and to add a project reference, see <a href="https://learn.microsoft.com/dotnet/core/tools/dotnet-add-reference" class="external-link" target="_blank">dotnet add reference command - .NET CLI</a>. To remove a reference, use <code>dotnet remove</code>. You can read more information at <a href="https://learn.microsoft.com/dotnet/core/tools/dotnet-remove-reference" class="external-link" target="_blank">how to remove a package reference</a> and <a href="https://learn.microsoft.com/dotnet/core/tools/dotnet-remove-package" class="external-link" target="_blank">how to remove a package</a>.</p> <p>If you would like to see or edit a project file, select the Project node in the Solution Explorer, and the project file will be opened in the editor. This is the same behavior you'll find when selecting a file in the Solution Explorer.</p> <p>Using the Solution Explorer, you can also perform common actions such as <strong>Build</strong>, <strong>Rebuild</strong>, and <strong>Clean</strong> using the context menus. You will see these context menus when you have selected the Solution node or project node in the Solution Explorer. This will Build/Rebuild/Clean the selected item as well as its dependencies.</p> <div class="feedback"></div> <div class="body-footer">6/6/2023</div> </main>  <div class="col-sm-3 col-md-2 hidden-xs docs-subnavbar-container"> <nav id="docs-subnavbar" aria-label="On Page" data-spy="affix" data-offset-top="20"> <h4><span class="sr-only">In this article there are 3 sections</span><span aria-hidden="true">In this article</span></h4> <ul class="nav"> <li><a href="#_solution-explorer">Solution Explorer</a></li> <li><a href="#_solution-folders">Solution Folders</a></li> <li><a href="#_working-with-projects">Working with projects</a></li> </ul> <div class="connect-widget"></div> </nav> </div>  <div class="col-xs-12 visible-xs"> <div class="connect-widget"></div> </div> </div> </div> </div> </div> <footer role="contentinfo" class="container"> <div class="footer-container"> <div class="footer-row"> <div class="footer-social"> <ul class="links"> <li> <a href="https://go.microsoft.com/fwlink/?LinkID=533687"><img src="/assets/icons/x-icon.svg" class="x-icon" alt="Follow us on X"></a> </li> <li> <a href="https://github.com/microsoft/vscode"><img src="/assets/icons/github-icon.svg" alt="VS Code on Github"></a> </li> <li> <a href="https://www.youtube.com/@code"><img src="/assets/icons/youtube-icon.svg" alt="VS Code on YouTube"></a> </li> <script> function manageConsent() { if (siteConsent && siteConsent.isConsentRequired) { siteConsent.manageConsent(); } } </script> </ul> <a id="footer-microsoft-link" class="microsoft-logo" href="https://www.microsoft.com"> <img src="/assets/icons/microsoft.svg" alt="Microsoft homepage" /> </a> </div> </div> <div class="footer-row"> <ul class="links"> <li><a id="footer-support-link" href="https://support.serviceshub.microsoft.com/supportforbusiness/create?sapId=d66407ed-3967-b000-4cfb-2c318cad363d" target="_blank" rel="noopener">Support</a></li> <li><a id="footer-privacy-link" href="https://go.microsoft.com/fwlink/?LinkId=521839" target="_blank" rel="noopener">Privacy</a></li> <li style="display: none;"><a id="footer-cookie-link" style="cursor: pointer;" onclick="manageConsent()" target="_blank" rel="noopener">Manage Cookies</a></li> <li><a id="footer-terms-link" href="https://www.microsoft.com/legal/terms-of-use" target="_blank" rel="noopener">Terms of Use</a></li> <li><a id="footer-license-link" href="/License" target="_blank" rel="noopener">License</a></li> </ul> </div> </div> </footer> <script src="/dist/index.js"></script> <script type="application/ld+json"> { "@context" : "http://schema.org", "@type" : "SoftwareApplication", "name" : "Visual Studio Code", "softwareVersion": "1.95", "offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD" }, "applicationCategory": "DeveloperApplication", "applicationSubCategory": "Text Editor", "alternateName": "VS Code", "datePublished": "2021-11-03", "operatingSystem": "Mac, Linux, Windows", "logo": "https://code.visualstudio.com/assets/apple-touch-icon.png", "screenshot": "https://code.visualstudio.com/assets/home/home-screenshot-win.png", "releaseNotes": "https://code.visualstudio.com/updates", "downloadUrl": "https://code.visualstudio.com/download", "license": "https://code.visualstudio.com/license", "softwareRequirements": "https://code.visualstudio.com/docs/supporting/requirements", "url" : "https://code.visualstudio.com", "author": { "@type": "Organization", "name": "Microsoft" }, "publisher": { "@type": "Organization", "name": "Microsoft" }, "maintainer": { "@type": "Organization", "name": "Microsoft" }, "potentialAction": { "@type": "SearchAction", "target": "https://code.visualstudio.com/Search?q={search_term_string}", "query-input": "required name=search_term_string" }, "sameAs" : [ "https://en.wikipedia.org/wiki/Visual_Studio_Code", "https://twitter.com/code", "https://www.youtube.com/code", "https://www.tiktok.com/@vscode", "https://github.com/microsoft/vscode" ] } </script> </body> </html>

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