title: Silverlight activity control - messing up width and height?
body: <p>I'm struggling with Silverlights' activity control. I placed a grid inside the activity control and no matter whether it shows "Loading..." or not, the grid doesn't stretch anymore, only the min-values are applied.
  After removing the activity-control everything works fine, againg - but I need to use the ctrl.
  Did I do something wrong?
  Best regards,
  rwh</p>
  
  <pre><code>Code:
  &lt;Grid x:Name="LayoutRoot" Style="{StaticResource DetailPageLayoutRoot}"&gt;
      &lt;activity:Activity IsActive="{Binding IsBusy}"&gt;
          &lt;Grid ShowGridLines="True" MinWidth="200" MinHeight="200" Background="Bisque" &gt;
              &lt;Grid.ColumnDefinitions&gt;
                  &lt;ColumnDefinition MinWidth="50" Width="0.2*"/&gt;
                  &lt;ColumnDefinition Width="Auto"/&gt;
                  &lt;ColumnDefinition MinWidth="50" Width="0.8*"/&gt;
              &lt;/Grid.ColumnDefinitions&gt;
              &lt;StackPanel Grid.Column="0" Margin="1" Background="Beige"&gt;
              ...
              &lt;/StackPanel&gt;
              &lt;controls:GridSplitter Grid.Column="1" VerticalAlignment="Stretch" HorizontalAlignment="Center" Margin="1" Width="4" MinWidth="4" MaxWidth="4"/&gt;
              &lt;StackPanel Grid.Column="2" Margin="1" Background="AliceBlue"&gt;
                  ...
              &lt;/StackPanel&gt;
          &lt;/Grid&gt;
      &lt;/activity:Activity&gt;
  &lt;/Grid&gt;
  </code></pre>