title: How to create custom dropdownlist with Grouped data in Adobe Flex?
body: <p>I wish to create a custom dropdown list which shows grouped data. The one having title of (category) sub-data shouldn't be selectable while other ones (names) should be selectable.</p>
  
  <p>Expected output should be something like below data to be shown in Dropdown list</p>
  
  <pre><code>Administrators
         John
         David
  Users
        Peter
        Steven
        James
  Members
  Jury 
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/TySyF.jpg" rel="nofollow noreferrer">Image for Reference</a>:
  <img src="https://i.stack.imgur.com/TySyF.jpg"></p>