Property :: located - Is instance located in the collection index
The property returns, whether the property handle refers to an instance in the collection, which needs not to be selected or positioned. You may preselect an instance by calling locateKey() or locateIndex().
The function returns true, when an instance is located. The property throws an exception, when the property handle is not valid.
Return value: Success ( bool )
The value is true when the function was executed successfully. Otherwise the value is set to false.