Try to typecast your ListBase variable to ComboBase and then try to access the property
Protected means only subclasses can access, not outsiders. The debugger has
special priveleges you can't use from ActionScript.
casting to ComboBase doesnt work either
1119: Access of possibly undefined property anchorIndex through a reference with static type mx.controls:ComboBase.
I extend ComboBase so I dont see why I shouldnt access protected properties....
Extending comobobase lets you see protected properties of ComboBase, but
ListBase is a separate thing.