does CodeMirror support C#?

hi

on page language C-like mode:
http://codemirror.net/mode/clike/index.html

At the bottom, it suggests me to use text/x-csharp (C#)
However, it does not work for C# file (no different color
displayed). Is there any special thing I need to pay
attention?

You didn’t say what you actually did. If you include clike.js and set your mode option to "text/x-csharp", you should get C#-specific highlighting.