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TaskObservableExtensions.ToTask(Of TResult) Method (IObservable(Of TResult), CancellationToken, Object)

Returns a task that contains the last value of the observable sequence.

Namespace:  System.Reactive.Threading.Tasks
Assembly:  System.Reactive (in System.Reactive.dll)
'Declaration
<ExtensionAttribute> _
Public Shared Function ToTask(Of TResult) ( _
	observable As IObservable(Of TResult), _
	cancellationToken As CancellationToken, _
	state As Object _
) As Task(Of TResult)
'Usage
Dim observable As IObservable(Of TResult)
Dim cancellationToken As CancellationToken
Dim state As Object
Dim returnValue As Task(Of TResult)

returnValue = observable.ToTask(cancellationToken, _
	state)

Type Parameters

TResult

The type of result.

Parameters

observable
Type: System.IObservable(Of TResult)
The observable sequence to convert to a task.
cancellationToken
Type: System.Threading.CancellationToken
Cancellation token that can be used to cancel the task, causing unsubscription from the observable sequence.
state
Type: System.Object
The state to use as the underlying task's AsyncState.

Return Value

Type: System.Threading.Tasks.Task(Of TResult)
A task that contains the last value of 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 TResult). 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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