Use this tab to define a validation pattern for validating user input (date, time, numerical, and textual data). The pattern must match the syntax of the user input. See To validate user input. Only this tab is available with barcodes, drop-down list, and list box; the Display, Edit, and Data tabs are not available.To display this dialog box, select the object you want to create a pattern for and, in the Object palette, click the Value tab, click Validation Patterns, and click the Validation tab. The options on this tab are the same as the options on the Display tab. For information about the options available, see Display (Patterns dialog box).