Instance Method

removeObserver:forKeyPath:context:

Raises an exception.

Declaration

- (void)removeObserver:(NSObject *)observer forKeyPath:(NSString *)keyPath context:(void *)context;

Parameters

observer

The object to remove as an observer.

keyPath

A key-path, relative to the set, for which observer is registered to receive KVO change notifications. This value must not be nil.

context

The context passed to the notifications.

Discussion

NSOrderedSet objects are not observable, so this method raises an exception when invoked on an NSOrderedSet object. Instead of observing an ordered set, observe the to-many relationship for which the ordered set is the collection of related objects.

See Also

Key-Value Observing Support