title: Select Item in formview based on drop down selected item
body: <p>I am trying to get a drop down and a form view to work together.  I've never used form views before.  I also am using the entity framework to do everything.  This is also my first time with it.</p>
  
  <p>I want to be able to have a drop down, that is populate from the same data source as the form view.  So far that works fine.</p>
  
  <p>I then want to be able to change the drop down item, and it change the form view item that is displayed.  I cannot figure out how to make this work.</p>