ContinueWith(TResult) Method (Func(Task, Object, TResult), Object, CancellationToken)
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Task.ContinueWith<TResult> Method (Func<Task, Object, TResult>, Object, CancellationToken)

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

Creates a continuation that executes when the target Task completes.

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

public Task<TResult> ContinueWith<TResult>(
	Func<Task, Object, TResult> continuationFunction,
	Object state,
	CancellationToken cancellationToken
)

Type Parameters

TResult

The type of the result produced by the continuation.

Parameters

continuationFunction
Type: System.Func<Task, Object, TResult>
A function to run when the Task completes. When run, the delegate will be passed the completed task and the caller-supplied state object as arguments.
state
Type: System.Object
An object representing data to be used by the continuation function.
cancellationToken
Type: System.Threading.CancellationToken
The CancellationToken that will be assigned to the new continuation task.

Return Value

Type: System.Threading.Tasks.Task<TResult>
A new continuation Task<TResult>.

ExceptionCondition
ArgumentNullException

The continuationFunction argument is null.

ObjectDisposedException

The provided CancellationToken has already been disposed.

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

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