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Task::ContinueWith<TResult> Method (Func<Task, TResult>, CancellationToken)

Creates a continuation that executes asynchronously when the target Task completes and returns a value. The continuation receives a cancellation token.

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

public:
generic<typename TResult>
Task<TResult>^ ContinueWith(
	Func<Task^, TResult>^ continuationFunction, 
	CancellationToken cancellationToken
)

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.

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
ObjectDisposedException

The Task has been disposed.

-or-

The CancellationTokenSource that created the token has already been disposed.

ArgumentNullException

The continuationFunction 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.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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