¿Cómo configurar la navegación de la página desde el cuadro de lista a otra página?

Hola, estoy usando el archivo XAML que figura a continuación. Quiero navegar por el elemento seleccionado del Cuadro de lista a otra página.

 <ListBox x:Name="NotchsList11"  Grid.ColumnSpan="2"
           Margin="0,0,0,0" Grid.Row="3" HorizontalAlignment="left" Width="720"  Grid.RowSpan="2">
        <ListBox.ItemTemplate>
            <DataTemplate>
                  <StackPanel Margin="0,0,0,0"  Grid.ColumnSpan="3" x:Name="ControlsPanel"
                        Grid.Column="0"
                        Height="215"
                        VerticalAlignment="Top">
                        <StackPanel Background="#eb2427" Orientation="Horizontal">
                            <TextBlock Grid.Row="1"  FontFamily="Calibri" FontSize="34" FontWeight="Bold"  FontStyle="Normal" Margin="10,0,0,0"
                                Text="{Binding name}"
                                   />               
                        </StackPanel>
                        <ScrollViewer ScrollViewer.HorizontalScrollBarVisibility="Visible" ScrollViewer.VerticalScrollBarVisibility="Disabled">
                        <StackPanel>
                        <StackPanel VerticalAlignment="Top" Width="Auto">
                                 <ListBox ItemsSource="{Binding Images}" SelectionChanged="NotchsList11_SelectionChanged" Width="Auto" ScrollViewer.VerticalScrollBarVisibility="Disabled">
                                    <ListBox.ItemsPanel>
                                            <ItemsPanelTemplate>
                                                <StackPanel Orientation="Horizontal" VerticalAlignment="Top">
                                                </StackPanel>
                                            </ItemsPanelTemplate>
                                        </ListBox.ItemsPanel>
                                    <ListBox.ItemTemplate>
                                        <DataTemplate>
                                            <Image Source="{Binding}" Width="160" Height="120" VerticalAlignment="Top"></Image>
                                        </DataTemplate>
                                    </ListBox.ItemTemplate>
                                </ListBox>
                     </StackPanel>
                 </StackPanel>
            </ScrollViewer>         
          </StackPanel>
        </DataTemplate>
      </ListBox.ItemTemplate>
    </ListBox>

Mi archivo xml se da a continuación

<?xml version="1.0" encoding="utf-8" ?>
  <root>
   <Categories>
     <Category name="Photos">
      <Articles>
       <article  title="Sherawat's">
        <FullContent>
         <style> img {padding:2px;} </style><p> <img alt=" Sherawat" pimcore_disable_thumbnail="true" pimcore_id="5853" pimcore_type="asset" src="http://feb2013/bolly---sherawat-s-upcoming-movie-dirty-politics/90_mallika-sherawat_bolly.jpg" style="width: 500px; height: 370px; float: left;" /></p> <p>Sherawat is all set to begin shooting for&nbsp;<em>Dirty Politics</em>&nbsp;where she plays Bhanwari Devi, a nurse whose murder hit the headlines last year. Meanwhile, she gets talking on&nbsp;Hollywood where she has not really had any meaty roles.</p>
        </FullContent>
        <thumb_image>
          <image  url="http://sss.com/Photo1.jpeg"/>"/>
        </thumb_image>
       </article>
       <article articleid="2684" title="Steals the Mai Show">
        <FullContent>
          <div id="container" class="cf">
           <link rel="stylesheet" href="http://sss.com/imageslider/app/css/demo.css" type="text/css" media="screen" /> <link rel="stylesheet" href="http://sss.com/imageslider/app/css/flexslider.css" type="text/css" media="screen" /><div id="main" role="main"> <section class="slider"> <div class="flexslider"> <ul class="slides"><li>Sonam Kapoor<img src="http://sss.com//website/var/tmp/thumb_5814_1_01feb2013__appfeed.jpeg" alt="Kapoor"/>/li> </ul></li>
         </div>
      </FullContent>
      <thumb_image>
        <image  url="http://Photo2.jpeg"/>"/>
      </thumb_image>
     </article>
    </Articles>
</Category>
<Category name="Videos">
  <Articles>
    <article articleid="415" title=" Dirty Politics">
     <FullContent>
       <style> img {padding:2px;} </style><p> <img alt="Sherawat" pimcore_disable_thumbnail="true" pimcore_id="5853" pimcore_type="asset" src="http://sss.com/bolly/feb2013/bolly---sherawat-s-upcoming-movie-dirty-politics/90_sherawat_bolly.jpg" style="width: 500px; height: 370px; float: left;" /></p>
     </FullContent>
     <thumb_image>
       <image  url="http://Video1.jpeg"/>"/>
     </thumb_image>
    </articles>
    <article articleid="68" title="Digital!">
     <FullContent>
    <p> Touch, tap, flip, slide! You don&#39;you experience it.</p> <br/><br/><br/> <br/><br/>
     </FullContent>
     <thumb_image>
       <image  url="http://Video2.jpeg"/>"/>
     </thumb_image>
   </article>
 </Article>
</Category>
<Category name="Bolly">
  <Articles>
   <article articleid="415" title="upcoming movie">
    <FullContent>
     <style> img {padding:2px;} </style><p> <img alt="Sherawat" pimcore_disable_thumbnail="true" pimcore_id="5853" pimcore_type="asset" src="http://sss.com/bolly/feb2013/bolly---sherawat-s-upcoming-movie-dirty-politics/90_sherawat_bolly.jpg" style="width: 500px; height: 370px; float: left;" /></p>
    </FullContent>
    <thumb_image>
     <image url="http://sss.com/website/var/tmp/thumb_5854_90_mallika-sherawat_thumb_bolly__forfeed.jpeg"/>
    </thumb_image>
   </articles>
   <article articleid="436" title="Surprise Package">
     <Description>
       There was more than just good music at the trio's recent performance
     </Description>
     <FullContent>
       <style> img {padding:2px;} </style><p> <img alt="Akcent" pimcore_disable_thumbnail="true" pimcore_id="6110" pimcore_type="asset" src="http://dev2.mercuryminds.com/global/feb2013/surprise-package-at-akcent-concert/18_akcent_global.jpg" style="width: 370px; height: 500px; float: left;" /></p>
     </FullContent>
     <thumb_image>
       <image url="http://sss.com/website/var/tmp/thumb_6109_18_akcent_thumb__forfeed.jpeg"/>
     </thumb_image>
    </article>
   </Article>
  </Category>
 </Categories>
</root>

Mi código de MainPage.xaml.cs

      void ParseXMLFile(string  dataInXmlFile)
    {
        try
        {
          //Parsing XML File

            XDocument xmlDoc = XDocument.Parse(dataInXmlFile);

            var query = from l in xmlDoc.Descendants("Category")
                        select new Notch
                        {
                            name = (string)l.Attribute("name").Value,
                            Titles = l.Element("Articles").Elements("article")
                                     .Select(s => s.Attribute("title").Value)
                                     .ToList(),

                            Images = l.Element("Articles").Elements("article")
                                     .Elements("thumb_image").Elements("image")
                                     .Select(x => x.Attribute("url").Value).ToList(),

                        };

                        foreach (var result in query)
                        {
                            Console.WriteLine(result.name);
                            foreach (var detail in result.Titles.Zip(result.Images, (st, si) => string.Format("{0} {1}", st, si)))
                            {
                                Console.WriteLine(detail);
                            }
                        }
                        NotchsList11.ItemsSource= query;

        }
        catch(Exception e)
        {
            MessageBox.Show("Binding Failed");
        }

    } 
    private void NotchsList11_SelectionChanged(object sender, SelectionChangedEventArgs e)
   {
      Notch selectedItemData = (sender as ListBox).SelectedValue as Notch;
      if(selectedItemData != null)
       {
     NavigationService.Navigate(new Uri(string.Format("/Test.xaml?parameter",selectedItemData.articleid), UriKind.Relative));
       }
    }

Mi DetailPage.xaml.cs

protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
 {
     base.OnNavigatedTo(e);
     string parameter = this.NavigationContext.QueryString["parameter"];
  }

Si hago clic en cualquier imagen, el título relacionado y el contenido completo navegan a la página de detalles pero el contenido completo desea mostrar la vista web en la página de detalles. así que probé este código pero seleccioné Ítem Datos obteniendo un valor nulo. No puedo navegar a otra página. ¿Cualquiera puede ayudarme a resolver este problema?

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