I would like to customize the popup calendar that is associated with the mx:DateField but I'm not sure where to start or what to subclass.
I need to add a CheckBox to the Calendar that when checked would mean the date is Not Applicable. Of course I would also need a way to dectect that it was checked and close the popup. I don't know that I would need to handle "unchecking" it, since picking a valid date would have the same meaning, so perhaps a Button would be better.
Any suggestions on where to start with finding the Calendar object and subclassing it?
It is called mx.controls.CalendarLayout.