The Validation rules property defines how your grid component will respond when a user inputs data into an editable field. As with the Field Properties list, these rules change depending on what type of control you are working with.
The 'Invalid data type error message' rule works with all fields except character fields. This rule allows you to define a message that will display if the user types in an invalid date, time, short time, or number into an input field.
The Grid component has exceptionally strong data validation features. This video demonstrates the validation features available, including Data validation rules, Data validation using custom Xbasic at the field level, Data validation events, and automatically honoring Field Rules for DBF tables.
These video discuss the various validation options in the UX Component.
The videos below discuss the validation features of Alpha Anywhere. While these videos were recorded for the UX Component, the discussions about Validation rules, Validation Xbasic, and Immediate Validation apply to the Grid Component.