private void packIcon_right_shrink_Click(object sender, RoutedEventArgs e)
        {
            DoubleAnimation doubleAnimation = new DoubleAnimation(
                25, new Duration(TimeSpan.FromMilliseconds(300)));

            doubleAnimation.Completed += DoubleAnimation_Completed;
            MainPageRight.BeginAnimation(WidthProperty, doubleAnimation);
        }
        private void packIcon_right_restore_Click(object sender, RoutedEventArgs e)
        {
            DoubleAnimation doubleAnimation = new DoubleAnimation(
                25, 230, new Duration(TimeSpan.FromMilliseconds(300)));

            MainPageRight.Visibility     = Visibility.Visible;
            MainPageRightMini.Visibility = Visibility.Collapsed;
            MainPageRight.BeginAnimation(WidthProperty, doubleAnimation);
        }