Ajax.BeginForm似乎重定向动作完成

I am currently developing a .net mvc 3 application. Here is the problem. For some reason, Though I am using Ajax.BeginForm and the right action is getting called, after the action completes, it is trying to redirect as if to another page that does not exist. However, I want it to stay on the same page just submit the form using ajax and return some friendly message to the user after the action completes.I am currently developing a .net mvc 3 applicat