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 1.18.1

• Added support for roslyn analyzers, code fixes and rulesets which can be enabled viaomnisharp.enableRoslynAnalyzers setting.
• Added a csharp.maxProjectFileCountForDiagnosticAnalysis setting to configure the file limit when the extension stops reporting errors for whole workspace. When this threshold is reached, the diagnostics are reported for currently opened files only.
• Added a omnisharp.enableMsBuildLoadProjectsOnDemand setting to load project for files that were opened in the editor. This enables faster navigation of the codebase for the larger codebases.
• Added initial support for C# 8.
• Improvement in load times for the extension.
• Added tasks for "dotnet publish" and "dotnet watch" in the initial asset generation.
• Added support for set next statement. This feature allows developers to change what code is executed next in the target program.
• Added support for showing return values in the variables window.

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.

Debugging

The C# extension now supports basic debugging capabilities! See http://aka.ms/vscclrdebugger for details.

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.