ManipulationDrawer demo main page code behind

MainPage.xaml.cs

using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;

namespace DetailsDrawer
{
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

        private void HandleGrid_OnManipulationStarted(object sender, ManipulationStartedRoutedEventArgs e)
        {
            var themeBrush = Application.Current.Resources["AppBarToggleButtonBackgroundCheckedPointerOver"] as SolidColorBrush;

            if (themeBrush != null)
                HandleGrid.Background = themeBrush;
        }

        private void HandleGrid_OnManipulationCompleted(object sender, ManipulationCompletedRoutedEventArgs e)
        {
            var themeBrush = Application.Current.Resources["AppBarBorderThemeBrush"] as SolidColorBrush;

            if (themeBrush != null)
                HandleGrid.Background = themeBrush;
        }

        private void HandleGrid_OnManipulationDelta(object sender, ManipulationDeltaRoutedEventArgs e)
        {
            DrawerContentGrid.Height = DrawerContentGrid.ActualHeight + -e.Delta.Translation.Y;
        }
    }
}