How to handle exceptions from a BackgroundWorker thread?

Question

In a WPF app I have a sheduled database access task, periodically run by a timer and this task have been executed in a BackgroundWorker thread.

When connection attempt failed I raise an exception by try_catch construction and I want to update a Status Bar text in a UI thread.

Is there some prebuild event construction in a BackgroundWorker for implementing this, something like DoWorkEventHandler or RunWorkerCompletedEventHandler, which can be used for this? If not, how to do it better?

Edited (added):

If I want to handle the exception inside RunWorkerCompletedEventHandler, using e.Error parameter, it doesn't work. In case I leave exception unhandled in the BackgroundWorker thread, application hangs on and debugger points to the string of code which is excuted inside BackgroundWorker thread, saying that: Exception was unhandled by user code.

So, in this case, thread doesn't just stop, signalling to RunWorkerCompletedEventHandler that it stopped with error, but the whole application stop working.

Answer 1

The RunWorkerCompletedEventArgs e of the RunWorkerCompletedEventHandler contains property Error it is of type Exception. If no exception occurred during the work of the background thread the prpery has null as value. Else it contains the error that occurred.