Recipe 8.4. Displaying User-Friendly Error Messages

8.5.1. Problem

You want the event-handling methods described in this chapter to write detailed messages to an error log for use in debugging your application, but you want to display friendly, informative messages to the user.

8.5.2. Solution

Create a custom exception class that includes a property to hold the user-friendly message, and when an error occurs, instantiate a new exception object of the custom type in the Catch block of your error-handling code, set the property of the exception to the desired message, and throw the new exception.