Getting the right WPF dispatcher in a thread

c# wpf dispatcher
Bert picture Bert · Mar 17, 2010 · Viewed 22.3k times · Source

In the constructor of an object i need to create a WPF mediaElement object:

m_videoMedia = new MediaElement();

but the class can also be instantiated from a other thread so i need to use 

Dispatcher.Invoke(DispatcherPriority.Normal,
    (Action)(() => { m_videoMedia = new MediaElement(); }));

But how can I get the right dispatcher instance in that constructor :s

Answer

Reed Copsey picture Reed Copsey · Mar 17, 2010

You most likely can just use Dispatcher.CurrentDispatcher.Invoke...

However, if for some reason that doesn't work, you could have your class receive a reference to the Dispatcher as part of its constructor. Just pass in Dispatcher.CurrentDispatcher from the UI thread at construction time.

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