ContinueWith(TNewResult) Method (Func(Task(TResult), TNewResult), CancellationToken, TaskContinuationOptions, TaskScheduler)
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Task(Of TResult).ContinueWith(Of TNewResult) Method (Func(Of Task(Of TResult), TNewResult), CancellationToken, TaskContinuationOptions, TaskScheduler)


Creates a continuation that executes according the condition specified in continuationOptions.

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

Public Function ContinueWith(Of TNewResult) (
	continuationFunction As Func(Of Task(Of TResult), TNewResult),
	cancellationToken As CancellationToken,
	continuationOptions As TaskContinuationOptions,
	scheduler As TaskScheduler
) As Task(Of TNewResult)


Type: System.Func(Of Task(Of TResult), TNewResult)

A function to run according the condition specified in continuationOptions.

When run, the delegate will be passed as an argument this completed task.

Type: System.Threading.CancellationToken

The CancellationToken that will be assigned to the new task.

Type: System.Threading.Tasks.TaskContinuationOptions

Options for when the continuation is scheduled and how it behaves. This includes criteria, such as OnlyOnCanceled, as well as execution options, such as ExecuteSynchronously.

Type: System.Threading.Tasks.TaskScheduler

The TaskScheduler to associate with the continuation task and to use for its execution.

Return Value

Type: System.Threading.Tasks.Task(Of TNewResult)

A new continuation Task(Of TResult).

Type Parameters


The type of the result produced by the continuation.

Exception Condition

The Task(Of TResult) has been disposed.


The CancellationTokenSource that created cancellationToken has already been disposed.


The continuationFunction argument is null.


The scheduler argument is null.


The continuationOptions argument specifies an invalid value for TaskContinuationOptions.

The returned Task(Of TResult) will not be scheduled for execution until the current task has completed, whether it completes due to running to completion successfully, faulting due to an unhandled exception, or exiting out early due to being canceled.

The continuationFunction, when executed, should return a Task(Of TResult).

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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