private void DoWork(DevExpress.ExpressApp.Demos.LongOperation longOperation)
{
try {
DoWorkCore(longOperation);
} catch (Exception) {
longOperation.TerminateAsync();
_ProgressControl.Dispose();
throw;
}
}
private void LongOperation_Completed(object sender, LongOperationCompletedEventArgs e)
{
progressControl.Dispose();
progressControl = null;
((LongOperation)sender).CancellingTimeoutExpired -= new EventHandler(LongOperation_CancellingTimeoutExpired);
((LongOperation)sender).Completed -= new EventHandler <LongOperationCompletedEventArgs>(LongOperation_Completed);
((LongOperation)sender).Dispose();
waitLongOperationCompleted.PostOperationCompleted(WorkCompleted, null);
waitLongOperationCompleted = null;
}