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TaskFactory.ContinueWhenAll Method (Task(), Action(Of 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)

'Declaration
Public Function ContinueWhenAll ( _
	tasks As Task(), _
	continuationAction As Action(Of Task()), _
	cancellationToken As CancellationToken, _
	continuationOptions As TaskContinuationOptions, _
	scheduler As TaskScheduler _
) As Task

Parameters

tasks
Type: System.Threading.Tasks.Task()

The array of tasks from which to continue.

continuationAction
Type: System.Action(Of 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 Nothing.

-or-

The continuationAction argument is Nothing.

-or-

The scheduler argument is Nothing.

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

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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