title: How can I disable an individual item in a combo box in Flex so that it is not clickable?
body: <p>I want to create a combobox in flex which will take three values, Available, Unavailable, and Busy. The constraint is, I should not allow user to go directly from Unavailable to Busy. So when a User is selected Unavailable, I should keep the Busy item disabled (unselectable), but a user will be able to go directly from Available to Busy. I chouldn't find a straight forward way to disable an item in combobox in Flex. How can I do that?</p>