Release 10.1A: OpenEdge Getting Started:
Object-oriented Programming

VALID-OBJECT function

VALID-OBJECT is a built-in LOGICAL function that verifies the validity of an object reference. If the object has been deleted or equals the Unknown value (?), the reference is not valid.

This is the syntax for the VALID-OBJECT function:

Syntax

VALID-OBJECT( object-reference )

Element descriptions for this syntax diagram follow:

object-reference

An object reference defined as any class or interface type.

If the object reference points to an object that is currently instantiated, VALID-OBJECT returns TRUE. Otherwise, it returns FALSE.