LANSA allows rules and triggers to be defined at the field level in the Repository. As an introduction to rules and triggers, review the following topics:
Types of Field Validation Rules
Field Rules/Triggers and the Object Access Module
Field versus Table Level Rules
Before adding field rules and triggers, review Table Rules and Triggers Development.
Also See
Rules and Triggers Definitions in Technical Reference Guide.
Field Rules and Triggers Tab in the Visual LANSA User Guide.