Question

Using c# code within a web application, I have a try catch statement in my code and within the catch I want to do several things such as email an administrator.

I am wondering what would happen if the email code or other code within the catch fails? Is there a way to handle a general exception in the application?

Answer 1

Description

1. There are 2 things you can do to catch unhandled exceptions. Application.ThreadException and AppDomain.CurrentDomain.UnhandledException

   Application.ThreadException Occurs when an untrapped thread exception is thrown.

   AppDomain.CurrentDomain.UnhandledException Occurs when an exception is not caught.

2. Handle a exception inside the catch block.

Sample

1. Application.ThreadException and AppDomain.CurrentDomain.UnhandledException

   Application.ThreadException +=
       new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
   
   AppDomain.CurrentDomain.UnhandledException += 
        new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
   

2. Handle a exception inside the catch block.

   try
   {
       // do something
   } 
   catch (Exception ex)
   {
       try
       {
           // send E-Mail
       } 
       catch
       {
           // handle 
       }   
   }
   

More Information

• Application.ThreadException Event
• AppDomain.UnhandledException Event