## C# for Visual Studio Code
A [Visual Studio Code](https://code.visualstudio.com/) [extension](https://marketplace.visualstudio.com/VSCode) that provides rich language support for C# and is shipped along with [C# Dev Kit][csdevkitextension]. Powered by a Language Server Protocol (LSP) server, this extension integrates with open source components like [Roslyn](https://github.com/dotnet/roslyn) and [Razor](https://github.com/dotnet/razor) to provide rich type information and a faster, more reliable C# experience.
## Recommended Install
While it is possible to use the C# extension as a standalone extension, we highly recommend using [C# Dev Kit][csdevkitextension].
1. Installing [C# Dev Kit][csdevkitextension] will automatically install this extension as a required dependency.
2. Open a folder/workspace that contains a C# project (.csproj) and a C# solution (.sln/.slnx) and the extension will activate.
3. Whether you install C# Dev Kit or just the C# extension, the [.NET Install Tool](https://marketplace.visualstudio.com/items?itemName=ms-dotnettools.vscode-dotnet-runtime) will be installed as a dependency.
Note: If working on a solution that requires versions prior to .NET 6 or non-solution based projects, install a .NET Framework runtime and [MSBuild tooling](https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2022).
* Set omnisharp.useModernNet to false and set dotnet.server.useOmnisharp to true
* Uninstall or disable C# Dev Kit
* Windows: .NET Framework along with [MSBuild Tools](https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2022)
* MacOS/Linux: [Mono with MSBuild](https://www.mono-project.com/download/preview/)
## Features
Learn more about the rich features of the C# extension:
* [Refactoring](https://code.visualstudio.com/docs/csharp/refactoring): Edit your code with code fixes and refactorings
* [Navigation](https://code.visualstudio.com/docs/csharp/navigate-edit): Explore and navigate your code with features like Go To Definition and Find All References
* [IntelliSense](https://code.visualstudio.com/docs/csharp/navigate-edit): Write code with auto-completion
* [Formatting and Linting](https://code.visualstudio.com/docs/csharp/formatting-linting): Format and lint your code
* [GitHub Copilot C# LSP .NET plugin](docs/Copilot-Dotnet-Plugin.md): Automatic installation of .NET skills and C# language intelligence for Copilot, and how to uninstall
For more information you can:
- [Follow our C# tutorial](https://code.visualstudio.com/docs/csharp/get-started) with step-by-step instructions for building a simple app.
- Check out the [C# documentation](https://code.visualstudio.com/docs/languages/csharp) on the VS Code site for general information about using the extension.
## How to use OmniSharp?
If you don’t want to take advantage of the great Language Server features, you can revert back to using OmniSharp by going to the Extension settings and setting `dotnet.server.useOmnisharp` to true. Next, uninstall or disable C# Dev Kit. Finally, restart VS Code for this to take effect.
## Found a Bug?
To file a new issue, follow the instructions at https://github.com/dotnet/vscode-csharp/blob/main/SUPPORT.md.
## Contributing
### License
Copyright © .NET Foundation, and contributors.
The Microsoft C# extension is subject to [these license terms](https://github.com/dotnet/vscode-csharp/blob/main/RuntimeLicenses/license.txt).
The source code to this extension is available on [https://github.com/dotnet/vscode-csharp](https://github.com/dotnet/vscode-csharp) and licensed under the [MIT license](LICENSE.txt).
### Contribution License Agreement
By signing the [CLA](https://cla.dotnetfoundation.org/), the community is free to use your contribution to [.NET Foundation](http://www.dotnetfoundation.org) projects.
### .NET Foundation
This project is supported by the [.NET Foundation](http://www.dotnetfoundation.org).
## Feedback
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[Known issues](https://github.com/dotnet/vscode-csharp/issues)
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[csdevkitextension]: https://marketplace.visualstudio.com/items?itemName=ms-dotnettools.csdevkit