[This is preliminary documentation and is subject to change.]

KVO notification change dictionaries contain true under this key if KNKeyValueObservingOptionPrior was specified when creating the observation and the current change notification is prior to the value changing. If the notification isn't a prior notification, this key isn't present.

Namespace:  KNKVC
Assembly:  KNKVC (in KNKVC.dll) Version: 1.0.0.0 (1.0.0.0)

Syntax

C#
public const string KNKeyValueChangeNotificationIsPriorKey
Visual Basic (Declaration)
Public Const KNKeyValueChangeNotificationIsPriorKey As String
Visual C++
public:
literal String^ KNKeyValueChangeNotificationIsPriorKey

See Also