AFEventFrameSearch.Subscribe Method (IObserver(AFSearchUpdateEvent(AFEventFrame)))
- Last UpdatedNov 18, 2025
- 2 minute read
- PI System
- AF SDK 2024 R2
- Developer
Subscribes an observer to matches for this event frame search.
Namespace: OSIsoft.AF.Search
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182
Syntax
public IDisposable Subscribe( IObserver<AFSearchUpdateEvent<AFEventFrame>> observer )
Public Function Subscribe ( observer As IObserver(Of AFSearchUpdateEvent(Of AFEventFrame)) ) As IDisposable Dim instance As AFEventFrameSearch Dim observer As IObserver(Of AFSearchUpdateEvent(Of AFEventFrame)) Dim returnValue As IDisposable returnValue = instance.Subscribe(observer)
public: IDisposable^ Subscribe( IObserver<AFSearchUpdateEvent<AFEventFrame^>^>^ observer )
member Subscribe : observer : IObserver<AFSearchUpdateEvent<AFEventFrame>> -> IDisposable
Parameters
- observer
- Type: SystemIObserverAFSearchUpdateEventAFEventFrame
The observer to notify on changes.
Return Value
Type: IDisposableAn IDisposable instance to call to unsubscribe.