Microsoft Access - Conditioning choices on a form between two pull-down menus

Asked By Bob on 17-Apr-13 10:50 AM
On an input form I have a pull-down menu of general categories (A), and another of sub-types (B). The sub-types vary according to the category, i.e. some categories have one sub-type (in effect, no sub-type), while others have two or more. How can I limit the selection of sub-type(B), once the category (A) has been selected? Thanks, Bob