title: The member "Projection" is not recognized
body: <p>I'm trying to set the Storyboard.TargetProperty="(UIElement.Projection)" property and I'm getting an error stating that the member "Projection" is not recognized or accessible. Would anyone know what I'm missing?</p>
  
  <pre><code>&lt;Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Title="MainWindow" Height="350" Width="525"&gt;
     &lt;Grid&gt;
         &lt;Image Source="MyImage.bmp" Width="220" Height="220"&gt;
             &lt;Image.Triggers&gt;
                 &lt;EventTrigger RoutedEvent="Mouse.MouseDown"&gt;
                     &lt;BeginStoryboard&gt;
                         &lt;Storyboard&gt;
                              &lt;DoubleAnimation Storyboard.TargetProperty="(UIElement.Projection).(PlaneProjection.RotateX)"  Duration="0:0:2" To="0" /&gt;
                         &lt;/Storyboard&gt;
                     &lt;/BeginStoryboard&gt;
                 &lt;/EventTrigger&gt;
             &lt;/Image.Triggers&gt;
         &lt;/Image&gt;    
     &lt;/Grid&gt;
  &lt;/Window&gt;
  </code></pre>