Release 10.1A: OpenEdge Development:
ADM Reference

validateFields

Procedure that validates a field in a data-display object.

Location: datavis.p

Parameters:

INPUT-OUTPUT pcNotValidFields AS CHARACTER

Valid values on output are:

The empty string, if validation succeeded
A comma-separated list of the fieldname, object handle and page, if validation failed

The updateRecord routine uses this output value to set focus.

Notes:

Called from updateRecord to ensure that data can be saved.
Field validation on leave cannot be trusted because save can be triggered by accelerators and no-focus buttons (toolbar).
Currently, only one error is handled. Validate() on hidden objects does not give any message.
Validation always checks unmodifed fields. This is useful for add/copy but not otherwise, as those fields are not saved.

You can extend the base visual object to filter what it displays. The following section lists the functions and procedures for SmartFilter objects.