[WPF] Rotate

Rotacja obiektu

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Shapes;
using System.Windows.Media;
using System.Windows.Media.Animation;

namespace WPFApplication2
{
    /// <summary>
    /// Interaction logic for Page1.xaml
    /// </summary>
    public partial class Page1 : System.Windows.Controls.Page
    {
        Storyboard myStoryboard;
        public Page1()
        {
            InitializeComponent();
            NameScope.SetNameScope(this, new NameScope());

            this.WindowTitle = "Fading Rectangle Example";
            StackPanel myPanel = new StackPanel();
            myPanel.Margin = new Thickness(10);

            Rectangle myRectangle = new Rectangle();
            myRectangle.Name = "myRectangle";
            this.RegisterName(myRectangle.Name, myRectangle);
            myRectangle.Width = 100;
            myRectangle.Height = 100;
            myRectangle.Fill = Brushes.Blue;

            myRectangle.RenderTransform = new RotateTransform(0, 50, 50);

            DoubleAnimation myDoubleAnimation = new DoubleAnimation();
            myDoubleAnimation.From = 0;
            myDoubleAnimation.To = 360;
            myDoubleAnimation.Duration = new Duration(TimeSpan.FromSeconds(5));
            myDoubleAnimation.AutoReverse = true;
            myDoubleAnimation.RepeatBehavior = RepeatBehavior.Forever;

            myStoryboard = new Storyboard();
            myStoryboard.Children.Add(myDoubleAnimation);
            Storyboard.SetTargetName(myDoubleAnimation, myRectangle.Name);
            Storyboard.SetTargetProperty(myDoubleAnimation, new PropertyPath(RotateTransform.AngleProperty));

            // Use the Loaded event to start the Storyboard.
            myRectangle.Loaded += new RoutedEventHandler(myRectangleLoaded);

            myPanel.Children.Add(myRectangle);
            this.Content = myPanel;
        }

        public void myRectangleLoaded(object sender, RoutedEventArgs e)
        {
            myStoryboard.Begin(this);
        }

    }
}

Build success. Zadnych błędów. Pytanie tylko dlaczego nie działa (kwadrat sie nie obraca)</cpp>