Adding, Editing, and Deleting Form Elements
Constraints
Impose constraints on entry, date, and numeric field values with rules that define admissible value lists, regular expressions, and date or numeric ranges.
You can impose constraints on the values entered when filling out a form. Constraints are applied to field values by using rules. A rule can specify a list of admissible values, a regular expression, or a date or numeric interval.
Configure constraints on the Constraints tab of the Element Properties window. You can set constraints for the following elements: