title: Combobox: disable autocomplete for DropDownList style
body: <p>OK, so when I have a <code>combobox</code> with <code>DropDownList</code> style and want just ctrl+c from it it makes 2 things:</p>
  
  <ul>
  <li>copies the current text to clipboard (that's OK) </li>
  <li>changes current
  selected item since I have some other starts from letter 'c'
  (<strong>THAT'S NOT OK</strong>)</li>
  </ul>
  
  <p>changing <code>AutoComplete</code> property doesn't do anything - it doesn't matter whether I set it to <code>Append</code>, <code>Suggest</code>, <code>SuggestAppend</code> or even <code>None</code>. Changing the DropDownStyle isn't acceptable for me.</p>
  
  <p>So I'm wondering - if there is any way to:</p>
  
  <ul>
  <li>handling ctrl+c operation from combobox</li>
  <li>not changing my current selection in combobox</li>
  </ul>
  
  <p>?? Thanks in advance!</p>