WinGrid™ uses the standard formatting types (e.g., numeric, date/time, and enumeration) provided by the .NET Framework in order to handle formatting of your data. The ToString method of the object to be formatted is invoked, with the format string and FormatInfo passed as parameters. The method returns the string in the specified format.
For information on the supported formatting types, see the "Formatting Types" section in the MSDN Library.