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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)

'Declaration
<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
'Usage
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

TSource

Parameters

source
Type: System.IObservable(Of TSource)
Observable sequence to subscribe to.
onNext
Type: System.Action(Of TSource)
Action to invoke for each element in the observable sequence.
onError
Type: System.Action(Of Exception)
Action to invoke upon exceptional termination of the observable sequence.
onCompleted
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 http://msdn.microsoft.com/en-us/library/bb384936(v=vs.103).aspx or http://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).aspx.
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