WPF: Is there a simple way to create a Progress Window?

I tried creating one, but the BackgroundWorker in Window1 couldn't access the ProgressBar in Window2 once the reportProgress was activated, because "The calling thread cannot access this object because a different thread owns 开发者_运维知识库it".

Seems there's a lower level thread model I could use, but it also seems a lot more complicated.

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You just need to get the ProgressBar disptacher.

You can access the ProgressBar with:

Window2.prograssbar.Dispatcher.Invoke(
    () => /*the code for modifying the progressbar*/ );

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In WPF, UI controls and properties may only be activated from the UI thread. In order to change the progress bar's value from a different thread, you can add a command to the GUI thread's dispatcher queue. You can do this by passing a delegate to the Dispatcher.Invoke() method. See the article at http://msdn.microsoft.com/en-us/magazine/cc163328.aspx for more details.

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You need to look into Delegates