How to debug c# source code of .net framework in visual studio 2017 ?

Question

I am using Visual studio to debug framework level code, I followed https://referencesource.microsoft.com/setup.htmlarticle and also downloaded the source code from https://referencesource.microsoft.com/download_47.html, While debugging when hitting the HttpWebRequest.cs debugger is not pointing to correct code, It it hitting some empty-space or comments arbitrarily.

I guess source code is not correctly mapped.
I tried deleting bin folder, clean and re-build project, restarting the pc, Empty symbol cache.
Please suggest how can I troubleshoot this issue.

Thanks in advance.

Answer 1

Are you sure that you use the same version as the source ?

For example, with VS 2022, I use 4.8 :

and the source is :

E:\Sources\DotNet48ZDP2\Source\ndp\fx\src\net\System\Net\HttpWebRequest.cs

and debugging works fine :

Answer 2

Hi @Yash Maheshwari, 

Welcome to Microsoft Q&A! 

Please refer to: Debug .NET Framework source and go to Tools > Options > Debugging > Symbols > check “Microsoft Symbol Servers”. 

You can view the similar issue. 

Sincerely,

Anna

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