How to handle Task.Run Exception

Question

I had a problem with catching the exception from Task.Run which was resolved by changing the code as follows. I\'d like to know the difference between handling

Answer 1

Building on @MennoJongerius answer the following keeps asynchronousity and moves the exception from the .wait to the Async Completed event handler:

Public Event AsyncCompleted As AsyncCompletedEventHandler

).ContinueWith(Sub(t)
                   If t.IsFaulted Then
                       Dim evt As AsyncCompletedEventHandler = Me.AsyncCompletedEvent
                       evt?.Invoke(Me, New AsyncCompletedEventArgs(t.Exception, False, Nothing))
                   End If
               End Sub)