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Thread race condition between UI thread and BackgroundWorker thread


In InformationDialog and ExportDialog forms there is a race condition between the BackgroundWorker thread and the UI thread. The worker thread starts updating the UI before ShowDialog method is called which results in the following exception:
System.InvalidOperationException: Invoke or BeginInvoke cannot be called on a control until the window handle has been created.
at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)
at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)
at GK.SportTracks.AttackPoint.UI.ExportDialog.UpdateProgress(String message) in