Keybinding a RelayCommand

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I don’t think you can do this from XAML, for exactly the reasons you describe.

I ended up doing it in the code-behind. Although it’s code, it’s only a single line of code, and still rather declarative, so I can live with it. However, I’d really hope that this is solved in the next version of WPF.

Here’s a sample line of code from one of my projects:

this.InputBindings.Add(new KeyBinding(
    ((MedicContext)this.DataContext).SynchronizeCommand,
    new KeyGesture(Key.F9)));

SynchronizeCommand in this case is an instance of RelayCommand, and (obviously) F9 triggers it.

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