EditMask controls
Specifies that the control uses a drop-down calendar to display and select dates when the MaskDataType is DateMask! or DateTimeMask!.
To set the DropDownCalendar property:
Select or clear the DropDownCalendar check box on the Mask page in the Properties view
The DropDownCalendar property takes a boolean value. The default is false. This example specifies that the EditMask control uses a drop-down calendar:
em_1.DropDownCalendar = true
