    class
    	EV_COMBO_BOX

    Ancestors
    	EV_COMBO_BOX_ACTION_SEQUENCES*
    	EV_LIST_ITEM_LIST*
    	EV_TEXT_FIELD

    Descendants
    	DV_COMBO_BOX

    Clients
    	EV_COMBO_BOX
    	EV_COMBO_BOX_IMP
    	EV_EDITABLE_LIST
    	EV_GRID_COMBO_ITEM
    	EV_LIST_ITEM_I*

    Suppliers
    	BOOLEAN
    	CHARACTER_8
    	EV_COMBO_BOX
    	EV_COMBO_BOX_I*
    	EV_COMBO_BOX_IMP
    	EV_LIST_ITEM_LIST*
    	EV_TEXT_FIELD
    	STRING_8
    	STRING_GENERAL*