title: What do I do If the value of a datagridviewcombobox is not in the datagridviewcomboboxcolumn datasource?
body: <p>I've got a situation where the drop down list has to contain only 'active' objects. However this doesn't mean the current combobox value will be in the list (it was selected at a time that object was active, but is not active anymore).</p>
  
  <p>As things are now, there's an exception thrown.. I think in the dataerror handler of the datagridview, that says the value is not in the list.</p>
  
  <p>What I need to do is find some event that is fired when each datagridview row is populated, so I can check and see if the combobox value is in the combobox datasource... if not, I'd add it. That's the only solution I can see. But the question is, which event handler should I use for this?</p>
  
  <p>Preferably, I'd like to be able to generalize this check and put it in a class that inherits from datagridview. This way, I won't have to worry about this problem ever again.</p>
  
  <p>Any ideas?</p>
  
  <p>Isaac</p>