To disable and "grey-out":
DropDownList1.access = "readOnly";
DropDownList1.ui.choiceList.border.fill.color.value = "210,210,210";
To enable and undo the grey-out:
DropDownList1.access = "open";
DropDownList1.ui.choiceList.border.fill.color.value = "255,255,255";
Jared Langdon
www.jlangdon.ca