Question

I have followed the Accepted Answer’s instructions from this post as regards creating a code behind file for a Resource Dictionary, and it worked…so now I can attach events to controls in the generic.xml file.

But now I want to be able to call the DragMove() method from an event in there and since there aren’t any references to the window hosting the dictionary at the time, I don’t know how to call this DragMove() method.

So, from a Resource Dictionary Code behind file, is there any way I can make a reference to the window that will currently be hosting that Resource Dictionary?

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[Update] (Temporary Solution)

As a simple (yet stupid) workaround, I have currently done the following:
Since I can reference the Application.Current.MainWindow from the Generic.xaml.cs code-behind, I now have this in the Generic.xaml.cs:

private void Border_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) {                    Application.Current.MainWindow.DragMove(); } 

And then I’m attaching PreviewMouseLeftButtonDown handler to each Window I have, like such:

private void Window_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e) {     Application.Current.MainWindow = this; } 

It, well, it works…and until someone can come up with the proper way on how to do this, It should serve me well enough.

Answer 1

There is no way I know of doing this. However, if you’re trying to determine the Window given a specific resource, you could use a RelativeSource:

<SolidColorBrush x:Key='MyBrush' Color='{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}, Converter={StaticResource WindowToColorConverter}'/> 

And if you’re doing it from code, you can use Window.GetWindow(). You just need a DependencyObject hosted in that Window.