This option is only available
for Integer, Time, Currency, and Real Number/Scientific Notation
validation types.
Select a Validation Text Field widget in the Document
window.
In the Property inspector (Window > Properties),
enter a number in the Min Value or Max Value box. For example, if
you enter 3 in the Min Value box, the widget only validates if the
user enters the number 3 or a value greater (4, 5, 6, and so on)
in the text field.