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IObserver<T>.OnCompleted Method

Notifies the observer that the provider has finished sending push-based notifications.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

void OnCompleted()

When the observer's OnCompleted implementation is called, the OnCompleted method can optionally call the Dispose method of the IDisposable object that was returned to the observer when it called the IObservable<T>.Subscribe method.

The following example provides an implementation of the OnCompleted method in a latitude/longitude tracking application. The method simply reports that no further data is available and calls the provider's IDisposable.Dispose implementation. See the Example section of the IObserver<T> topic for the complete example.

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

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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