IObserver<T>.OnCompleted 方法

定義

命名空間:

System

組件:

System.Runtime.dll

通知觀察者，提供者已完成傳送推播通知。

public:
 void OnCompleted();

public void OnCompleted ();

abstract member OnCompleted : unit -> unit

Public Sub OnCompleted ()

範例

下列範例會在緯度/經度追蹤應用程式中提供 方法的 OnCompleted 實作。 方法只會報告沒有進一步的資料可供使用，並呼叫提供者的實作 IDisposable.Dispose 。 如需完整範例， IObserver<T> 請參閱主題的一節。

public virtual void OnCompleted()
{
   Console.WriteLine("The Location Tracker has completed transmitting data to {0}.", this.Name);
   this.Unsubscribe();
}

member this.OnCompleted() =
    printfn $"The Location Tracker has completed transmitting data to {name}."
    this.Unsubscribe()

Public Overridable Sub OnCompleted() Implements System.IObserver(Of Location).OnCompleted
   Console.WriteLine("The Location Tracker has completed transmitting data to {0}.", Me.Name)
   Me.Unsubscribe()
End Sub

備註

呼叫觀察者的實作 OnCompleted 時， OnCompleted 方法可以選擇性地呼叫 DisposeIDisposable 方法時 IObservable<T>.Subscribe 傳回給觀察者的 方法。