title: What is the preferred method of refreshing a combo box when the data changes?
body: <p>What is the preferred method of refreshing a combo box when the data changes?</p>
  
  <p>If a form is open and the combo box data is already loaded, how do you refresh the contents of the combo box without the form having to be closed and reloaded?</p>
  
  <p>Do you have to do something on the Click event on the combo box?  This would seem to be a potential slow down for the app if there is a hit to the database every time someone clicks on a combo box.</p>