title: Binding an NSPopUpButton
body: <p>OK, so here's my situation :</p>
  
  <ul>
  <li>I've got an <code>NSDictionary</code>, let's call it : <code>myItem</code>.</li>
  <li><code>myItem.valueNames</code> contains the values that I want to show up in the popup</li>
  <li><code>myItem.values</code> contains the values the popup must return (e.g. for valueName[0] -> value[0], and so on)</li>
  <li><code>myItem.value</code> contains the current value</li>
  </ul>
  
  <p>How am I suppose to bind that? Even though I've studied the official reference, it still looks a bit obscure...</p>
  
  <p>I'm currently binding :</p>
  
  <ul>
  <li><code>myItem.valueNames</code> to <code>Content</code></li>
  <li><code>myItem.values</code> to <code>Content Objects</code></li>
  <li><code>myItem.value</code> to <code>Selected Value</code></li>
  </ul>
  
  <p>and... all I've managed is that it shows the <code>valueNames</code>.</p>
  
  <p>Any ideas?</p>