Jak ustawić Nawigację strony z Listbox na inną stronę?

Witam używam pliku XAML podanego poniżej. Chcę nawigować do wybranego elementu Listbox na inną stronę.

 <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>

Mój plik XML podany poniżej

<?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>

Mój kod 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));
       }
    }

My DetailPage.xaml.cs

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

Jeśli kliknę dowolny obrazek, powiązany tytuł i pełną treść, przejdź do strony szczegółów, ale pełna treść chce wyświetlić widok internetowy na stronie szczegółów. więc spróbowałem tego kodu, ale selectedItemData uzyskując wartość null.i cant przejść do innej strony. Więc każdy może mi pomóc rozwiązać ten problem?

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