title: LoopingSelector does not show?
body: <p>I got the following xaml:</p>
  
  <pre><code>           &lt;controls:PanoramaItem Header="overview"&gt;
  
                  &lt;Grid&gt;
  
                      &lt;Grid.ColumnDefinitions&gt;
                          &lt;ColumnDefinition /&gt;
                      &lt;/Grid.ColumnDefinitions&gt;
  
                      &lt;Grid.RowDefinitions&gt;
                          &lt;RowDefinition /&gt;
                      &lt;/Grid.RowDefinitions&gt;
  
                      &lt;toolkit:LoopingSelector Grid.Column="0" Grid.Row="0" ItemMargin="5" Width="160"  ItemSize="160,105" &gt;
                          &lt;toolkit:LoopingSelector.ItemTemplate&gt;
                              &lt;DataTemplate&gt;
                                  &lt;Grid&gt;
                                      &lt;TextBlock Text="{Binding Numbers}" FontSize="15" HorizontalAlignment="Center" VerticalAlignment="Center" /&gt;
                                  &lt;/Grid&gt;
                              &lt;/DataTemplate&gt;
                          &lt;/toolkit:LoopingSelector.ItemTemplate&gt;
                      &lt;/toolkit:LoopingSelector&gt;
  
                  &lt;/Grid&gt;
  
              &lt;/controls:PanoramaItem&gt;
  </code></pre>
  
  <p>where Numbers looks like this:</p>
  
  <pre><code>this.Numbers = new List&lt;int&gt; { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
  
  public List&lt;int&gt; Numbers { get; private set; }
  </code></pre>
  
  <p>The thing builds and runs, but the loopingselector does not seem to visible... does anyone know why I cant see it?</p>