News

Real-World Experiment with .NET Core Debugging via Visual Studio Code

Microsoft calls the recent release of this VS Code debugging capability an "experimental preview," which means it's truly a work in progress.

Microsoft last week released what it's calling an "experimental preview" of a new feature of Visual Studio Code that will allow debugging of the ASP.NET Core CLI tools. It's like a prelude to a community technology preview, only since Visual Studio Code itself is a preview, it's a preview-withiin-a-preview.

The experimental preview debug window shows "breakpoints, stepping, variable inspection, and call stacks," but as of now, no IntelliSense with CLI project types, according to a blog post from Daniel Meixner, a Microsoft Developer Evangelist. Meixner notes that other features have yet to be enabled.

"Given the very early stage of .NET Core and the debugging experience there will be some features you might be used to in the Visual Studio IDE that we don't have in VS Code yet," Meixner explained. For example, he notes that to see program output in a console window while debugging takes a bit of work. As well, variable values can't be edited nor can code be modified/run during debugging sessions. And missing are TracePoints and Conditional breakpoints.

Basic debugging configuration settings, such as setting breakpoints, watches and locals, are enabled, and other debugging features can be configured via the launch.json file. A stopAtEntry flag will make the debugger break at entry of an application for immediate code stepping.

To use the experimental preview, the latest version of Visual Studio Code, version 0.10.1, should be installed. It also requires the .NET CLI tools, the C# for Visual Studio Code extension, and Mono.

About the Author

You Tell 'Em, Readers: If you've read this far, know that Michael Domingo, Visual Studio Magazine Editor in Chief, is here to serve you, dear readers, and wants to get you the information you so richly deserve. What news, content, topics, issues do you want to see covered in Visual Studio Magazine? He's listening at [email protected].

comments powered by Disqus

Featured

  • .NET 11 Preview 5 Focuses on Performance, Productivity and Safer Code

    .NET 11 Preview 5 focuses on under-the-hood runtime performance gains, streamlined APIs and language features that reduce boilerplate, plus built‑in security checks and incremental ASP.NET Core and EF Core improvements aimed at everyday developer productivity.

  • VS Code 1.124 Focuses on Agent Autonomy and Parallel Sessions

    Microsoft's June 2026 VS Code update turns on Autopilot by default and adds background sending for agent sessions.

  • Developing Agentic Systems in .NET: From Concept to Code

    ZioNet founder Alon Fliess previews his Visual Studio Live! San Diego session on building true agentic systems in .NET -- covering the cognitive loop, MCP tool integration, multi-agent orchestration and enterprise hosting and governance with the Microsoft Agent Framework.

  • Mastering AI Development and Building AI Apps with GitHub Copilot

    Two Microsoft experts explain how GitHub Copilot is evolving from a coding assistant into a broader platform for building, customizing and testing AI-powered developer workflows.

Subscribe on YouTube