Read-only. Use only in conjunction with the Table Link parameter.
For a zone linked to an internal table, this property returns the translated value from the table, or an empty string if the value was not found in the table. This property returns the translation from the specified table even if the Table Link Parameters window | Use Translation Field option is disabled. When applied to a zone, this property returns the translated value of the first line.
Post Extract, AnyApp Post Extract, Pre-Verify, Interactive, Verification Function Key (F-Key), Post-Verify
IsAlpha is the command.