Adding an error message to the view model based on controller attribute in ASP.NET MVC

Question

I have a custom attribute for authorization on my controller, the details of which can be viewed here.

If this custom attribute returns false, it returns to the login screen. I want to add a error to my model for the login screen if the attribute returns false.

Any ideas?

This looks like a duplicate of an existing SO question: MVC 3 AuthorizeAttribute Redirect with Custom Message — Călin Darie
– Călin Darie, Commented Sep 16, 2011 at 7:18

dnatoli · Accepted Answer · 2011-09-29 02:06:16Z

5

For those who are looking for the answer, here is how I ended up doing it:

protected override void HandleUnauthorizedRequest(AuthorizationContext filterContext)
{
   if (filterContext.HttpContext.User.Identity.IsAuthenticated)
   {
      var result = new ViewResult();
      result.ViewName = "NotAuthorized";
      result.MasterName = "_Layout";
      filterContext.Result = result;
   }
   else
      base.HandleUnauthorizedRequest(filterContext);
}

answered Sep 29, 2011 at 2:06

dnatoli

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rouen · Accepted Answer · 2011-09-16 07:09:03Z

0

Look at the TempData feature. Basically, it is similar to ViewData, but lives to the next request (using session). So, store your model error here (wrap it up appropriately if needed) and look for it after redirect in login page action.

answered Sep 16, 2011 at 7:09

rouen

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