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

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:
Task^ ContinueWhenAll(
	array<Task^>^ tasks, 
	Action<array<Task^>^>^ continuationAction, 
	CancellationToken cancellationToken, 
	TaskContinuationOptions continuationOptions, 
	TaskScheduler^ scheduler
)

Parameters

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

The array of tasks from which to continue.

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

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.

continuationOptions
Type: System.Threading.Tasks::TaskContinuationOptions

A bitwise combination of the enumeration values that control the behavior of the new continuation task.

scheduler
Type: System.Threading.Tasks::TaskScheduler

The object that is used to schedule the new continuation task.

Return Value

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

ExceptionCondition
ArgumentNullException

The tasks array is nullptr.

-or-

The continuationAction argument is nullptr.

-or-

The scheduler 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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