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System.IObserver<'T> Interface (F#)

Den Delimarsky|Last Updated: 8/18/2017
1 Contributor

A client that may be subscribed to observe the results from an IObservable.

Namespace/Module Path: System

Assembly: FSharp.Core (in FSharp.Core.dll)


type IObserver<'T> =
abstract this.OnCompleted : unit -> unit
abstract this.OnError : exn -> unit
abstract this.OnNext : 'T -> unit


This type is provided for use only with the F# Core Library Versions that targets .NET Framework 2.0. If you are using .NET Framework 4, use the .NET Framework 4 type with the same name, System.IObserver.

Instance Members

OnCompletedNotify an observer that no more results will be produced
OnErrorNotify an observer of an error
OnNextNotify an observer of a new result


Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2

Version Information

F# Core Library Versions

Supported in: 2.0

See Also

System Namespace (F#)

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