title: Visual C# source files in subdirectory
body: <p>How do you get Visual C# 2010 to go along with the idea of putting source files in a subdirectory, that is, <code>*.cs</code> moves to <code>src\*.cs</code> while leaving everything else where it is? It's probably something very simple, I just tried creating a test class as <code>src\myclass.cs</code> instead of plain <code>myclass.cs</code> and Visual C# would have none of it.</p>