Validating year in updating nvidia graphics driver xp


This is the same as setting the Required field property to Yes.

However, when you enable the Required property and a user fails to enter a value, Access displays a somewhat unfriendly error message.

The steps in the section Add a validation rule to a control on a form, later in this article, explain how to add rules to the properties in individual controls.

Your validation rules can contain expressions — functions that return a single value.

Usually, a record validation rule compares the values of two or more fields.