title: WP8 XAML Binding List<> with another List<> inside
body: <p>I am trying to bind a list of objects to a list control for a Windows Phone 8 app which also contains another list within it. I have tried to find out how to set this out so that when selecting an item from the parent list the child list is then loaded into a separate list control but cannot find any details. Any help would be most appreciated as I have hit a dead end with this.</p>
  
  <p>I am trying to use lists as below:</p>
  
  <p>List which then contains a List which also contains a List. I need to setup an initial list of stations which the user will select one, which will then populate another list with the platforms, and then selecting a platform will load the list of trains.</p>