title: Can I put a horizontal line in a combo box or list control?
body: <p>I'm building a Windows Form that includes a combo box control, and I wanted to put a horizontal line between certain items.  I've seen this done in other contexts using a hyphen in an item list, but a hyphen doesn't do this in this case. I don't know if a horizontal line is even possible with this control.  What I am trying to accomplish is something like:</p>
  
  <pre><code>Item 1
  Item 2
  Item 3
  _________________
  Item A
  </code></pre>
  
  <p>I suppose I could simply put a line of hyphens in there, but a nice clean line would be better if it could be done.</p>