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

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

Namespace/Module Path: System

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

[<AllowNullLiteral>]
type IObserver<'T> =
 interface
  abstract this.OnCompleted : unit -> unit
  abstract this.OnError : exn -> unit
  abstract this.OnNext : 'T -> unit
 end

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, IObserver<T>.

Member

Description

OnCompleted

Notify an observer that no more results will be produced

OnError

Notify an observer of an error

OnNext

Notify an observer of a new result

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

F# Core Library Versions

Supported in: 2.0

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