Range mask validation works by setting a minimum and maximum limit on acceptable input into an entry field (see entry field - validation in the Reference Guide). It works on a field basis, rather than on a character by character basis. This response is triggered when the user attempts to move the cursor out of the entry field.

For example, if a range of 1000 to 2000 is specified, the user would be required to enter a number between 1000 and 2000 or a dialog box will pop up indicating an invalid entry.