ASP.Net MVC Exception handling

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MVC

Handling

exceptions

Hi,

I get an exception in Authorization module which i am handling in Application_Error handler (also i am calling Server.ClearError()) since i want to sent custom error page with some error info to user.

I am surprised to see that final response sent to user have error response + response which was actually requested (which means that MVCHandler is processed)

I am posting below code snippet to simulate similar scenario for quick reference.

public MvcApplication()
       {
           AuthorizeRequest += (sender, arg) =>
               {
                   throw new Exception("Boooommmm");
               };


           Error += (sender, arg) =>
               {
                   HandleException();
               };

       }

       private void HandleException()
       {
           var ex = Server.GetLastError();
           Context.Response.Write(String.Format("Some Error Correlation ID to User"));
           Server.ClearError();
       }

And lets say : my HomeController action return simple text like :

public class HomeController : Controller
    {
        // GET: Home
        public ActionResult Index()
        {
            return Content("Some text from controller");
        }

    }

If I will run above application and hit /Home/Index, response I will get like :

"Some Error Correlation ID to User Some text from controller"

This made me to ask question : Does HttpRuntime continue firing ApplicationEvents in sequence event after exception occurred in one of the event handler ?


I would like to understand how exception flows in such case (at least glimpse of this would be helpful)

Thanks in advance!!
Rahul