How to catch exceptions from a ThreadPool.QueueUserWorkItem?

Question

I have the following code that throws an exception:

ThreadPool.QueueUserWorkItem(state => action()); 

When the action throws an exception, my program crashes. What is the best practice for handling this situation?

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Related: Exceptions on .Net ThreadPool Threads

Answer 1

You can add try/catch like this:

        ThreadPool.QueueUserWorkItem(state =>                                          {                                              try                                              {                                                  action();                                              }                                              catch (Exception ex)                                              {                                                  OnException(ex);                                              }                                          });