title: What does 'ItemsSource="{Binding}"' mean?
body: <p>I'm attempting to learn WPF by unravelling a frankly nightmarish project written by the guy who was in this job before me. Sorry if some of my questions are pretty much homework-level but I'm trying to work out what existing XAML does, with an insufficient understanding of the concepts behind it...</p>
  
  <p>Anyway, I have a ListView with this as part of its definition:</p>
  
  <pre><code>&lt;ListView 
      DataContext="{StaticResource XMLFileGroups}"
      ItemContainerStyle="{StaticResource XMLItemStyle}"
      ItemsSource="{Binding}"&gt;
  </code></pre>
  
  <p>Now, I can kind of get my head around what the "DataContext" and "ItemContainerStyle" lines are doing; they appear to be referencing a method of sorting an existing list, and a structure defining some visual behaviour of the ListView, respectively.</p>
  
  <p>What's wrecking me is the fact that the ItemsSource is listed as "{Binding}". All that says to me is that there is some kind of databinding in place, but I don't understand how the line can possibly be meaningful and yet removing it stops any data from being displayed.</p>
  
  <p>Can someone shed some light on what is happening here, or where I should look for the actual binding definition? I just don't understand what I'm seeing, here.</p>