Introduction

VS Code can be useful for editing and working with existing .NET Framework projects, but it is not a full replacement for Visual Studio in every .NET Framework scenario. The practical question is not "can VS Code open the code" but "which parts of the .NET Framework workflow do you actually need."

The Short Answer

Yes, VS Code can be used for some .NET Framework development, especially when you are:

• editing C# code
• navigating existing solutions
• building with MSBuild on Windows
• debugging console or service-style applications

Where it falls short is the classic Visual Studio experience around designers and older Windows-centric project tooling.

What You Need Installed

For an existing .NET Framework project on Windows, the key pieces are:

• VS Code
• the C# extension or current Microsoft .NET tooling extension set
• MSBuild and the .NET Framework targeting pack or developer pack

The important detail is that the modern dotnet CLI primarily targets modern .NET. It is not the main project-creation path for traditional .NET Framework applications.

Building an Existing Project

If the solution already exists, you can usually build it with MSBuild from the integrated terminal.

msbuild MyApp.sln /p:Configuration=Debug

That fits well with VS Code because the editor does not need to own the build system. It only needs to integrate with it.

You can also wire this into a VS Code task.

1{
2  "version": "2.0.0",
3  "tasks": [
4    {
5      "label": "build",
6      "type": "shell",
7      "command": "msbuild",
8      "args": ["MyApp.sln", "/p:Configuration=Debug"],
9      "group": "build"
10    }
11  ]
12}

Debugging in VS Code

Debugging depends on the project type and tooling installed, but for many managed applications you can set up a launch configuration that starts the built executable.

1{
2  "version": "0.2.0",
3  "configurations": [
4    {
5      "name": ".NET Framework App",
6      "type": "clr",
7      "request": "launch",
8      "program": "${workspaceFolder}/bin/Debug/MyApp.exe",
9      "cwd": "${workspaceFolder}"
10    }
11  ]
12}

This works best for applications that do not depend on designers or deep Visual Studio integration.

Where Visual Studio Still Wins

Classic .NET Framework development often includes technologies such as:

• WinForms designers
• WPF designers
• older ASP.NET project systems
• packaging, publishing, and enterprise tooling tied closely to Visual Studio

Those workflows are where full Visual Studio remains the better tool. VS Code can edit the files, but editing XAML or designer-generated forms without the full IDE experience can be slow and error-prone.

A Good Way to Think About It

VS Code is a strong lightweight editor for source code, Git, search, refactoring, and terminal-based build steps. Full Visual Studio is the richer Windows IDE when the project depends on legacy project templates, designers, or advanced debugging and profiling support.

That makes VS Code a reasonable choice for maintenance work, library code, utilities, or teams that already have a working build pipeline. It is a weaker fit when you need the classic Visual Studio project experience end to end.

Common Pitfalls

• Assuming dotnet new and dotnet build cover every old .NET Framework workflow leads to confusion.
• Expecting full WinForms or WPF designer support in VS Code is unrealistic.
• Forgetting that .NET Framework development is fundamentally Windows-oriented can waste time on unsupported setups.
• Using VS Code without a working MSBuild and targeting-pack installation leaves the editor with nothing reliable to build.
• Treating "code editing works" as proof that the full development workflow is equally smooth overstates VS Code’s role.

Summary

• VS Code can be useful for editing, building, and sometimes debugging existing .NET Framework projects.
• It works best when the project already has a stable Windows build setup and does not depend heavily on designers.
• Full Visual Studio is still the better choice for many classic .NET Framework application workflows.
• The dotnet CLI is not the main solution for traditional .NET Framework project creation.
• Choose the tool based on the project type, not just on whether the files open successfully.