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Published 20 hours ago • verified publisher icon dotnet
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Official C# support for Visual Studio Code

C# for Visual Studio Code (powered by OmniSharp)

Welcome to the C# extension for Visual Studio Code! This extension provides the following features inside VS Code:

  • Lightweight development tools for .NET Core.
  • Great C# editing support, including Syntax Highlighting, IntelliSense, Go to Definition, Find All References, etc.
  • Debugging support for .NET Core (CoreCLR). NOTE: Mono debugging is not supported. Desktop CLR debugging has limited support.
  • Support for project.json and csproj projects on Windows, macOS and Linux.

The C# extension is powered by OmniSharp.

Requirements

  • .NET 6 SDK or newer when omnisharp.useModernNet is set to true (the default value).
  • A Full Framework runtime and MSBuild tooling when omnisharp.useModernNet is set to false.

Get Started Writing C# in VS Code

Announcements

The C# extension no longer ships with an included Mono & MSBuild Tools

.NET Framework builds of OmniSharp no longer ship with Mono or the MSBuild tooling (See announcement omnisharp-roslyn#2339). To ensure that the C# extension remains usable out of the box for .NET SDK projects, we have changed the default value of omnisharp.useModernNet to true.

If you still need Unity or .NET Framework support, you can set omnisharp.useModernNet to false in your VS Code settings and restart OmniSharp. Please see the Requirements section above to ensure necessary tooling is installed.

See issue #5120 for more details.

What's new in 1.25.1

  • Provide actionable error messages for .NET SDK issues (#5223, PR: #5225)

What's new in 1.25.0

What's new in 1.24.4

  • Remove inlayHints from diff view (PR: #5151)
  • Quote arguments containing spaces when launching OmniSharp (#5150, PR: #5154)

What's new in 1.24.3

  • Fix OmniSharp not found issue on Mono (#5140, PR: #5141)

What's new in 1.24.2

Emmet support in Razor files

To enable emmet support, add the following to your settings.json:

"emmet.includeLanguages": {
    "aspnetcorerazor": "html"
}

Supported Operating Systems for Debugging

Currently, the C# debugger officially supports the following operating systems:

  • X64 operating systems:
    • Windows 7 SP1 and newer
    • macOS 10.12 (Sierra) and newer
    • Linux: see .NET Core documentation for the list of supported distributions. Note that other Linux distributions will likely work as well as long as they include glibc and OpenSSL.
  • ARM operating systems:
    • Linux is supported as a remote debugging target

Found a Bug?

To file a new issue to include all the related config information directly from vscode by entering the command pallette with Ctrl+Shift+P (Cmd+Shift+P on macOS) and running CSharp: Report an issue command. This will open a browser window with all the necessary information related to the installed extensions, dotnet version, mono version, etc. Enter all the remaining information and hit submit. More information can be found on the wiki.

Alternatively you could visit https://github.com/OmniSharp/omnisharp-vscode/issues and file a new one.

Development

First install:

  • Node.js (8.11.1 or later)
  • Npm (5.6.0 or later)

To run and develop do the following:

  • Run npm ci
  • Run npm run compile
  • Open in Visual Studio Code (code .)
  • Optional: run npm run watch, make code changes
  • Press F5 to debug

To test do the following: npm run test or F5 in VS Code with the "Launch Tests" debug configuration.

License

Copyright © .NET Foundation, and contributors.

The Microsoft C# extension is subject to these license terms. The source code to this extension is available on https://github.com/OmniSharp/omnisharp-vscode and licensed under the MIT license.

Code of Conduct

This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community. For more information see the .NET Foundation Code of Conduct.

Contribution License Agreement

By signing the CLA, the community is free to use your contribution to .NET Foundation projects.

.NET Foundation

This project is supported by the .NET Foundation.

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Official C# support for Visual Studio Code

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