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Showing posts with the label SynchronizationContext

BackgroundWorker in .Net Console Application

Today I was just doing net surf and came across one interesting question 'Can progress event of BackgroundWorker execute after completed event'. At first I thought no, but when I tried this with Console application, I was also able to reproduce this issue. Now question is, how come this scenario occurs in Console app and not in Windows form. Pretty interesting, right ? Now coming to Windows form, this issue will never occur, due to message queuing support. Windows message queue takes very good care of execution sequence of the events. This clearly mean that the progress event may run after the DoWork has completed, but the completion event will always happen afterwards. Another interesting thing here is the SynchronizationContext, which helps in maintaining all these sequencing. But when talking about Console application, none of the above holds true. There is no SynchronizationContext installed and the events just end up in getting run in threadpool thread, which doesn&#