title: Get UserName within Login to check if it's Administrator Role
body: <p>I have a little problem.
  I'd like to check if the user is in role admin after clicking login.
  I have one problem left when doing it with</p>
  
  <pre><code>if(User.IsInRole("Administrator"))
  </code></pre>
  
  <p>User == null and i can't figure out another way to do it.</p>
  
  <p>I tried several things but nothing actually works.</p>
  
  <p>It should be withing this</p>
  
  <pre><code> switch (result)
          {
              case SignInStatus.Success:
                  //check if user is admin
                  if (Roles.GetRolesForUser().Contains("Administrator"))
                  {
                      return RedirectToAction("Index", "MIS");
                  }
                  else
                      return View();
  </code></pre>