title: Bind to Count of items in the DataContext
body: <p>I want to bind to the Count/amount of items within my DataContext.</p>
  <p>I have an object, let's say person which has a <code>List&lt;address&gt;</code> as a property. I would like to display the amount of addresses for that person, i.e.: 5 or 6 or whatever the case may be.</p>
  <p>I've tried <code>{Binding Path=address#.Count}</code> and a few others but that doesn't seem to work.</p>