CollectionChanged notification across threads?

Posted by Mark on Stack Overflow See other posts from Stack Overflow or by Mark
Published on 2010-05-07T03:19:06Z Indexed on 2010/05/07 3:28 UTC
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c#

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wpf

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multithreading

I'm writing a download manager using C#/WPF, and I just encountered this error:

This type of CollectionView does not support changes to its SourceCollection from a thread different from the Dispatcher thread.

The basic flow of my program is that a few web pages/downloads are enqueued at the start, and then they're downloaded asynchronously. When an HTML page has completed downloading, I parse it and look for more stuff to download, then enqueue it directly from within the worker thread.

I get that error when trying to send out the CollectionChanged event on my customized queue class. However, I need to fire that event so that the GUI can get updated.

What are my options?

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