title: How to change the parent of DataContext in xaml in Windows phone 8.1
body: <p>I have this xaml in windows phone 8.1. 
  My page data context is binded to a ViewModel, i.e. VM.
  And My listView is binded to Items of ViewModel.
  And the text in each list view item is binded to Text of Items of ViewModel.</p>
  
  
  
  <pre><code>&lt;Page DataContext="{Binding VM}"&gt;
  &lt;ListView ItemsSource="{Binding Items}"&gt;
       &lt;ListView.ItemTemplate&gt;
          &lt;DataTemplate&gt;
                  &lt;TextBox Text="{Binding Text}"/&gt;
                  &lt;TextBox Text="{Binding soemthing in VM}" /&gt;
          &lt;/DataTemplate&gt;
      &lt;/ListView.ItemTemplate&gt;
  &lt;/ListView&gt;
  &lt;/Page&gt;
  </code></pre>
  
  <p>My question is how can I change the parent datacontext of my 2nd TextBox so that I can bind something in my ViewModel (not my ViewModel.Items)?</p>
  
  <p>Thank you.</p>