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Asked: 2026-05-11T13:17:04+00:00

I’m using a background worker in order to get data from a database. My

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I’m using a background worker in order to get data from a database. My problem is that I’m struggling to report any errors in the database activity.

I’ve tried straight up spawning a Dialog (Windows Form that I’ve created) from the DatabaseUpdater class. However, this hangs and I’m left with a white box instead of the error message. I’ve tried spawning the Dialog in a separate thread – this results in the Dialog appearing and disappearing almost instantly. Obviously I wasn’t entirely surprised by this, but attempts at maintaining the Dialog resulted in the same white box effect.

I guess my question is really what is the best practice for displaying errors coming from threaded activity?

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1 Answer

  1. Assuming the BackgroundWorker task in invoked from the UI thread, you should check for and display any errors in the handler for the RunWorkerCompleted event – do not try to handle them in the DoWork handler method…

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