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My application has a worker thread doing some files synchronisation.
Under certain condition during the sync process, my worker thread needs to make a decision to continue or not. Hence, I think I would ask for user feedback by showing a dialog box/message box.. (Yes/No). Which would cause the worker to either continue or stop.
Now the question is:
Is it safe to show message box on non UI thread?
Would it possibly cause any potential issues?
Yes it is safe.
MessageBox.Show()is a static thread-safe method.Not in this scenario I think. But you do block a Thread, not something you should do when you can prevent it.