Minimum Code for Silverlight Animation

Let's change the height of an element.

 DoubleAnimation dy = new DoubleAnimation
 {
   From = from * element.ActualHeight,
   To = to * element.ActualHeight,
   Duration = TimeSpan.FromSeconds(0.3)
 };
 Storyboard.SetTarget(dy, element);
 Storyboard.SetTargetProperty(dy, new PropertyPath(FrameworkElement.HeightProperty));
 Storyboard sb = new Storyboard();
 sb.Children.Add(da);
 sb.Begin();