title: ASP.NET MVC redirect to an access denied page using a custom role provider
body: <p>I'm creating a custom role provider and I set a Authorize attribute specifying a role in my controller and it's working just fine, like this:</p>
  
  <pre><code>[Authorize(Roles="SuperAdmin")]
  public class SuperAdminController : Controller
  ...
  </code></pre>
  
  <p>But when an user doens't have access to this controller, he's redirected to login page.
  How can I redirect him to a "AcessDenied.aspx" page?</p>