Progress
Language Reference


VALIDATE-EXPRESSION Attribute

The value of the validation expression in the database schema for the database field that corresponds to the buffer-field.

The VALIDATE-EXPRESSION attribute lets you write user input validation code for interfaces that Progress’s automatic user input validation does not support.

Data Type: CHARACTER

Access: Readable/Writeable

Applies To: Buffer-field Object Handle

If a buffer-field is associated with a dynamic browse column, you should set the buffer-field’s VALIDATE-EXPRESSION attribute before the dynamic browse column is added to the browser (via ADD-LIKE-COLUMN( )). The validation expression is compiled at this time. If the VALIDATE-EXPRESSION attribute is changed later, it is ignored.


Copyright © 2004 Progress Software Corporation
www.progress.com
Voice: (781) 280-4000
Fax: (781) 280-4095