Used to hide the '30-12-1899' dates.
property NullForZeroDelphiDate: boolean default False;
Use the NullForZeroDelphiDate property to hide the '30-12-1899' dates.
If NullForZeroDelphiDate is set to True, the values of all datetime fields will be changed to Null. If the property is set to False, the '30-12-1899' value will be used as an ordinary date. The default value is False.