title: Silverlight ProgressBar: Set IndeterminateGradientFill dynamically?
body: <p>I'm styling a ProgressBar in SL4 and have it nearly done except for the indeterminate animation. This is to be a typed style, and the width of the ProgressBar won't be a fixed value. I'm trying to get set the "To" value in the storyboard, but I'm not having much success...</p>
  
  <pre><code>&lt;DoubleAnimation Duration="00:00:.5" Storyboard.TargetProperty="(Shape.Fill).(LinearGradientBrush.Transform).(TransformGroup.Children)[0].X" Storyboard.TargetName="IndeterminateGradientFill" From="0" To="{Binding ElementName=ProgressBarRootGrid, Path=ActualWidth}"/&gt;
  </code></pre>
  
  <p>Any suggestions?</p>