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    copied!<h3>First please fix your converter:</h3> <pre><code>public class PhotoConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { try { if ((value is byte[]) &amp;&amp; (value != null)) return Visibility.Visible; else return Visibility.Collapsed; } catch (Exception ex) { throw ex; return Visibility.Collapsed; } } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } } </code></pre> <h3>Then fix your XAML</h3> <pre><code>&lt;controls:PanoramaItem x:Name="Pano_Photos" Header="photos"&gt; &lt;ListBox x:Name="lstMemoriesPhoto" ItemsSource="{Binding MemoryList}"&gt; &lt;i:Interaction.Triggers&gt; &lt;i:EventTrigger EventName="SelectionChanged" x:Name="ListPhotoSelectionChangedEventTrigger"&gt; &lt;GalaSoft_MvvmLight_Command:EventToCommand Command="{Binding NavigateToDetailPage}" PassEventArgsToCommand="True"/&gt; &lt;/i:EventTrigger&gt; &lt;/i:Interaction.Triggers&gt; &lt;ListBox.ItemsPanel&gt; &lt;ItemsPanelTemplate&gt; &lt;toolkit:WrapPanel ItemWidth="130" ItemHeight="130"/&gt; &lt;/ItemsPanelTemplate&gt; &lt;/ListBox.ItemsPanel&gt; &lt;ListBox.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;Image Source="{Binding MemoryPhoto,Converter={StaticResource ByteImageConverter}}" Visibility="{Binding MemoryPhoto, Converter={StaticResource PhotoConverter}}" Margin="5"/&gt; &lt;/DataTemplate&gt; &lt;/ListBox.ItemTemplate&gt; &lt;/ListBox&gt; &lt;/controls:PanoramaItem&gt; </code></pre>
 

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