Some of the most important ways to enhance forms are to create:
Display formats to specify how values are formatted
Edit styles to specify styles in which values are presented and entered
Validation rules to ensure that values entered in forms are valid
Display formats, edit styles, and validation rules are usually created in the Database painter (if you have access to the database). In the Form painter, the database definitions apply to the data unless you override them with new definitions. The new definitions you create in the Form painter do not affect the definitions in the database; the definitions are used only in the form.
For more information, see Chapter 8, “Displaying and Validating Data.”