tryRemoveKeyDeferred

tryRemoveKeyDeferred(keys: KeyType): MemberType, receiverByReference, 
                                   updating;

The tryRemoveKeyDeferred method of the ExtKeyDictionary class attempts to remove the single value pair with the key specified in the keys parameter from the external key dictionary if it is present. For persistent dictionaries, the attempt is queued and executed when the database transaction commits. For transient dictionaries, the attempt is executed immediately.

This method returns true if the dictionary is persistent or the dictionary is transient and the key value was removed; otherwise it returns false.

2020.0.01 and higher