将模型从一个控制器传递到MVC 3中的布局

I was creating Blogs with ASP.NET MVC 3. I have created the View that list blog post while clicking the Blog navigation link. I have also tried to list the Blog category in Layout to appear the blog category list to every link. The problem is that when I click the blog category list link it shows the runtime error like I was creating Blogs with ASP.NET MVC 3. I have