title: Does not exist in the current context error
body: <p>When i try to bind my Image in XAML to bitmapImage object in the code behind it gives me 
  'Does not exist in the current context' error.</p>
  
  <p>Code</p>
  
  <pre><code>BitmapImage bitmapImage = new BitmapImage();
  PhotoSource.Source = bitmapImage;
  ObservableCollection&lt;BitmapImage&gt; Photos = new ObservableCollection&lt;BitmapImage&gt;();
  PhotoList.ItemsSource = Photos;
  </code></pre>
  
  <p>XAML</p>
  
  <pre><code>&lt;Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,5,12,-10"&gt;
          &lt;ProgressBar x:Name="progressBar" HorizontalAlignment="Left" Height="40" Margin="0,0,0,0" VerticalAlignment="Top" Width="436" Visibility="Collapsed" IsIndeterminate="True"/&gt;
          &lt;ListBox x:Name="PhotoList" 
                   toolkit:TiltEffect.IsTiltEnabled="True"
                   SelectionChanged="PhotoList_SelectionChange"
                   HorizontalAlignment="Left" Height="500" Margin="0,40,0,0" VerticalAlignment="Top" Width="450"&gt;
              &lt;ListBox.ItemsPanel&gt;
                  &lt;ItemsPanelTemplate&gt;
                      &lt;toolkit:WrapPanel 
                          HorizontalAlignment="Left" 
                          Margin="0,0,0,0" 
                          VerticalAlignment="Top" 
                      /&gt;
                  &lt;/ItemsPanelTemplate&gt;
              &lt;/ListBox.ItemsPanel&gt;
              &lt;ListBox.ItemTemplate&gt;
                  &lt;DataTemplate&gt;
                      &lt;StackPanel Margin="5"&gt;
                          &lt;StackPanel Orientation="Vertical"&gt;
                              **&lt;Image delay:LowProfileImageLoader.UriSource="{Binding PhotoSource}" Width="99" Height="80"/&gt;**
                          &lt;/StackPanel&gt;
                      &lt;/StackPanel&gt;
  
                  &lt;/DataTemplate&gt;
              &lt;/ListBox.ItemTemplate&gt;
          &lt;/ListBox&gt;
      &lt;/Grid&gt;
  </code></pre>