DB

TDateField encapsulates the fundamental behavior common to Date fields. Date fields contain date values (without any time value), which they manage using the TDateTime type (Delphi) or class (C++). 

If you use the Fields editor at design time to create a persistent field component for the date field, you can access it by name at runtime. When using dynamic field components, you can access the TDateField instance using the dataset's Fields property or FieldByName method. 

TTimeField 

TDateTimeField 

TSQLTimeStampField 

TDataSet 

TDataSet 

TDataSet 

TField 

Using Default Formatting for Numeric 

Controlling and Masking User Input