Chapter 2-4: Files and Fields |
Domain Fields A domain-type field assumes the attributes that are defined for any type of domain in the same or an outside application. One of the Domain-Type Field Specifications overlays automatically displays after you complete the entries on the Fields specifications screen if the Field Type you select is DOMAIN.
Domain Field Specification Overlay (Alpha Domain) The following fields are contained on the Domain-Type Field Specifications overlay for Alpha, Format, Text, Token, Date, and Logic domains: Domain Name links a domain-type field to a specific domain in the same or another APPX application. Descriptive provides a longer, more easily understood alternative to Field Name, one that is not required to be unique within an application. If blank at all default levels, Field Name is used. Because Descriptive is less cryptic and can be more flexibly formatted than Field Name, it is easier to understand, and so the system uses Descriptive when communicating with users. Descriptive is used, for example, when the value of a field displays to a user on a standard image, such as the Select Access Path display or an APPX-generated subheading. We suggest that you use a singular entry for Descriptive, and avoid appending the word 'field'. Column Hdgs designates up to two lines of column heading text. The APPX output process facility uses this text to generate standard column heading images for Start of Page and Start of Range class frames. For cosmetic reasons, the length of headings should not exceed the length of a field itself. Refer to Standard Column Heading Image for additional information. The Domain-Type Field Specification overlays for Alpha, Format, Text, Token, Date, and Logic domains contain the following option described in the corresponding section: |
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