WPF Ribbon - Hide quick access toolbar

Question

how do you hide Quick Access Toolbar in a WPF\'s Ribbon?

Answer 1

Or if you want it all in the XAML, this works

    CollapseQuickAccessToolbar
    
        private void CollapseQuickAccessToolbar(Object sender, RoutedEventArgs e) {
            ((Grid)VisualTreeHelper.GetChild((DependencyObject)sender, 0)).RowDefinitions[0].Height = new GridLength(0);
        }