我想调试（设置一个断点）System.Web.Mvc.DefaultControllerFactory，这可能吗？

I have a project that references the System.Web.Mvc assembly in the GAC. I also have the ASP.NET MVC source code from Codeplex. I want to get a better understanding of the DefaultControllerFactory by stepping through its methods. How could I set this up?I have a project that references the System.Web