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TaskFactory::ContinueWhenAll<TAntecedentResult> Method (array<Task<TAntecedentResult>>, Action<array<Task<TAntecedentResult>>>, CancellationToken)

Creates a continuation task that starts when a set of specified tasks has completed.

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

public:
generic<typename TAntecedentResult>
Task^ ContinueWhenAll(
	array<Task<TAntecedentResult>^>^ tasks, 
	Action<array<Task<TAntecedentResult>^>^>^ continuationAction, 
	CancellationToken cancellationToken
)

Type Parameters

TAntecedentResult

The type of the result of the antecedent tasks.

Parameters

tasks
Type: array<System.Threading.Tasks::Task<TAntecedentResult>>

The array of tasks from which to continue.

continuationAction
Type: System::Action<array<Task<TAntecedentResult>>>

The action delegate to execute when all tasks in the tasks array have completed.

cancellationToken
Type: System.Threading::CancellationToken

The cancellation token to assign to the new continuation task.

Return Value

Type: System.Threading.Tasks::Task
The new continuation task.

ExceptionCondition
ObjectDisposedException

An element in the tasks array has been disposed.

-or-

The CancellationTokenSource that created cancellationToken has already been disposed.

ArgumentNullException

The tasks array is nullptr.

-or-

The continuationAction argument is nullptr.

ArgumentException

The tasks array is empty or contains a null value.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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