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IObserver<T>.OnNext Method

.NET Framework 4.5

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Provides the observer with new data.

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

Syntax

C++

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void OnNext(
	T value
)

Parameters

value: Type: T
The current notification information.

Remarks

After an observer has called a provider's IObservable<T>.Subscribe method, the provider calls the observer's OnNext method to provide notifications.

Examples

The following example provides an implementation of the OnNext method in a latitude/longitude tracking application. See the Example section of the IObserver<T> topic for the complete example.

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public virtual void OnNext(Location value)
{
   Console.WriteLine("{2}: The current location is {0}, {1}", value.Latitude, value.Longitude, this.Name);
}

Version Information

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

Platforms

Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, 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.

Reference

IObserver<T> Interface

System Namespace

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