title: WPF: How do I hook into a ListView's ItemsSource CollectionChanged notification?
body: <p>I have a <code>ListView</code> that is databound to an <code>ObservableCollection</code> ...</p>
  
  <pre><code>&lt;ListView x:Name="List1" ItemsSource="{Binding MyList}" /&gt;
  </code></pre>
  
  <p>I can't seem to find any event that are triggered when the collection changes, so I'm thinking that somehow I need to hook into the collectionchanged notification somehow? I'm not really sure how to do that.</p>
  
  <p>Basically, when the collection changes I want to do additional work beyond what the ListView already does in updating it's list.</p>