ObservableExtensions.Subscribe(Of TSource) Method (IObservable(Of TSource), Action(Of TSource), Action(Of Exception), Action)

Subscribes an element handler, an exception handler, and a completion handler to an observable sequence.

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

<ExtensionAttribute> _
Public Shared Function Subscribe(Of TSource) ( _
	source As IObservable(Of TSource), _
	onNext As Action(Of TSource), _
	onError As Action(Of Exception), _
	onCompleted As Action _
) As IDisposable
Dim source As IObservable(Of TSource)
Dim onNext As Action(Of TSource)
Dim onError As Action(Of Exception)
Dim onCompleted As Action
Dim returnValue As IDisposable

returnValue = source.Subscribe(onNext, _
	onError, onCompleted)

Type Parameters



Type: System.IObservable(Of TSource)
Observable sequence to subscribe to.
Type: System.Action(Of TSource)
Action to invoke for each element in the observable sequence.
Type: System.Action(Of Exception)
Action to invoke upon exceptional termination of the observable sequence.
Type: System.Action
Action to invoke upon graceful termination of the observable sequence.

Return Value

Type: System.IDisposable
IDisposable object used to unsubscribe from the observable sequence.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable(Of TSource). When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.103).aspx or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).aspx.