The DatePicker control features Masked Date Input. You can specify
a Date Format and the Format will be used by the control as a Mask,
so that only a properly formatted date value will be accepted by the
control. The Date Format can be System specified, where it is taken
from the System Settings, or Custom specified, where you specify the
Format in any way you want.
See the following topics for more information on System and Custom
Date Formats.
