title: How to make a combo box with fulltext search autocomplete support?
body: <p>I would like a user to be able to type in the second or third word from a <code>TComboBox</code> item and for that item to appear in the <code>AutoSuggest</code> dropdown options</p>
  
  <p>For example, a combo box contains the items:</p>
  
  <ul>
  <li>Mr John Brown  </li>
  <li>Mrs Amanda Brown  </li>
  <li>Mr Brian Jones  </li>
  <li>Mrs Samantha Smith</li>
  </ul>
  
  <p>When the user types "Br" the dropdown displays:</p>
  
  <ul>
  <li>Mr John Brown  </li>
  <li>Mrs Amanda Brown  </li>
  <li>Mr Brian Jones  </li>
  </ul>
  
  <p>and when the user types "Jo" the dropdown displays:</p>
  
  <ul>
  <li>Mr John Brown  </li>
  <li>Mr Brian Jones  </li>
  </ul>
  
  <p>The problem is that the <code>AutoSuggest</code> functionality only includes items in the dropdown list that begin with what the user has input and so in the examples above nothing will appear in the dropdown. </p>
  
  <p>Is it possible to use the <code>IAutoComplete</code> interface and/or other related interfaces to get around this issue?</p>