ContinueWith(TResult) Method (Func(Task, TResult), TaskScheduler)
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Task.ContinueWith<TResult> Method (Func<Task, TResult>, TaskScheduler)

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Creates a continuation that executes asynchronously when the target Task completes.

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

public Task<TResult> ContinueWith<TResult>(
	Func<Task, TResult> continuationFunction,
	TaskScheduler scheduler
)

Type Parameters

TResult

The type of the result produced by the continuation.

Parameters

continuationFunction
Type: System.Func<Task, TResult>
A function to run when the Task completes. When run, the delegate will be passed the completed task as an argument.
scheduler
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<TResult>
A new continuation Task<TResult>.

ExceptionCondition
ObjectDisposedException

The Task has been disposed.

ArgumentNullException

The continuationFunction argument is null.

-or-

The scheduler argument is null.

The returned Task<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.

Windows Phone OS

Supported in: 8.1, 8.0

Date

History

Reason

Added text to clarify asynchronous execution of continuations.

Customer feedback.

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