title: bind item's children control in ItemsControl wpf
body: <p>i am binding an ItemsControl to a list, but in item template there is a control which is not binding by current dataSource, i want to bind it with another dataSource.</p>
  
  <p>but i am stuck at accessing that control  </p>
  
  <p>my ItemsControl's dataTemplate is---></p>
  
  <pre><code>&lt;ItemsControl x:Name="ItemRequesterList" IsTabStop="False"&gt;
      &lt;ItemsControl.ItemTemplate&gt;
           &lt;DataTemplate x:Name="ItemReqTemplate"&gt;
               &lt;StackPanel Margin="10,0,0,0"&gt;
                  &lt;TextBlock Text="{Binding DisplayName}"&gt;&lt;/TextBlock&gt;
                  &lt;TextBlock Text="requested on"&gt;&lt;/TextBlock&gt;
                  &lt;TextBlock Text="{Binding}"&gt;&lt;/TextBlock&gt; //&lt;---this control, i 
                                                 //    want to bind with another dataSource
               &lt;/StackPanel&gt; 
          &lt;/DataTemplate&gt;
  </code></pre>
  
  <p>so how can i access this control, which is lie in each item ?</p>