到 C:\Program Files (or x86)\Microsoft Visual Studio 10.0\Common7\IDE\ItemTemplates\CSharp (or Visual Basic)\Web\MVC (or 2) 3\CodeTemplates
复制CodeTemplates目录下文件到项目,删除tt类文件的Custom Tool属性,然后对项目中模板的修改会覆盖全局设置
C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\ItemTemplates\CSharp\Web\MVC 3\CodeTemplates
详细参考
http://blogs.msdn.com/b/scott_hanselman/archive/2011/11/29/asp-net-mvc.aspx