Returns an IObservableTuple containing the values of the current
instance prior to the last update. This can be useful when a NotifyPropertyChanged
event is received to access the value of the changed field prior the change, for example
to calculate deltas. May return null if the implementation does not track old values.
Namespace: StreamBase.LiveView.APIAssembly: StreamBase.LiveView.API (in StreamBase.LiveView.API.dll) Version: 2.2.8.5956 (2.2.8.5956)
Syntax
| C# | Visual Basic | Visual C++ |
IObservableTuple GetPreviousValues()
Function GetPreviousValues As IObservableTuple
IObservableTuple^ GetPreviousValues()
Return Value
An IObservableTuple which contains the values of this object prior to its last update, or null if the implementation does not perform such tracking.See Also
