C# for Visual Studio Code (powered by OmniSharp)

Master	Release

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.

Get Started Writing C# in VS Code

• Documentation
• Video Tutorial compiling with .NET Core

What's new in 1.21.7

• Updated the embedded Mono to 6.4.0 (PR:omnisharp-roslyn/#1640)
• Improved support for .NET Core 3

What's new in 1.21.6

• Fixed a bug that caused CS0019 diagnostic to be erroneously reported when comparing to default (omnisharp-roslyn/#1619, PR:omnisharp-roslyn/#1634)
• Correctly respect request cancellation token in metadata service (omnisharp-roslyn/#1631)
• Improved support for .NET Core 3

What's new in 1.21.5

• Fixed regression that caused "go to metadata" to not work (omnisharp-roslyn/#1624, PR: omnisharp-roslyn/#1625)

What's new in 1.21.4

• Improved support for .NET Core 3

What's new in 1.21.3

• Added support for CheckForOverflowUnderflow in csproj files
• Improved support for .NET Core 3

What's new in 1.21.2

• Added a omnisharp.enableEditorConfigSupport setting to enable support for .editorconfig.
• Modified the auto generated tasks in tasks.json to generate full paths and disable summary to fix the problem of no source links in the problems panel.
• Improved analyzers performance by introducing background analysis support
• End of support for .NET Core 1.0 and 1.1 (project.json-based .NET Core flavors).
• Added support for AdditionalFiles in csproj files
• Improved the MSBuild selection logic. The standalone instance inside OmniSharp is now preferred over VS2017, with VS2019 given the highest priority.

See our change log for more detail.

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 i
• 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

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.