Yes, I created a control which inherits from ComboBox.
public class MyComboBox : ComboBox
{
...
   new public AClass Items
   {
       get
           {
               return m_aclass;
           }
   }
...
}

I also override OnDrawItem. The problem is OnDrawItemEventArgs.Index always
= -1. In addition, at design time if I click the Items property, a dialog
comes up allowing me to add new items to my collection. I can add as many as
I want to. If I click Ok (to close the dialog) and then click the Items
property again the items I added are there. Once I run the application, the
items are no longer there. If I recheck at design time again by clicking the
Items property, the items are gone.

So I actually have 2 problems.

AClass inherits from CollectionBase.

I hope this is a little more clear.

-Joe