TextBox and default Button binding does update too late

Question

I\'ve got a simple WPF dialog with these two controls:

Answer 1

Try this. This code moves focus on the button clicked. Thus binding completes before command processed.

    public App()
    {
        EventManager.RegisterClassHandler(typeof(Button), Button.ClickEvent, new RoutedEventHandler(GenericButtonClickHandler));
    }

    void GenericButtonClickHandler(object sender, RoutedEventArgs e)
    {
        var button = sender as Button;
        if (button == null)
            return;
        if (button.IsDefault)
            button.Focus();
    }