title: How to attach source code to dll in visual studio?
body: <p>In one solution, I used some dll file from others. So because there are dll, no source code, I can't debug it.</p>
  
  <p>Now I get the soucre code for the dll, which is a class library. How can I attach this source code to the dll in my solutin so I can debug the dll?</p>