title: MVC3 Authorization
body: <p>There is a credential system I'm developing. No MembershipProvider applied for this purpose.
  I have designed and developed my own custom Role Management System.</p>
  
  <p>My question is, how can I <code>add [Authorize(Role="Super User")]</code> dynamically?<br>
  I mean, for example, I defined a new user User4 who have access to Action4, attribute above the action is, for example, <code>[Authorize("Super User,"Admin")]</code> Now I want to make Action4 accessible for User4. This is not mentioned already. How can I handle this dynamically without adding new user authorization attribute each time for different Actions???</p>
  
  <p>I thanks in advance for any suggestion and sample code.</p>