ContinueWhenAll Method (Task[], Action(Task[]), CancellationToken, TaskContinuationOptions, TaskScheduler)
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TaskFactory.ContinueWhenAll Method (Task[], Action<Task[]>, CancellationToken, TaskContinuationOptions, TaskScheduler)

 

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

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

member ContinueWhenAll : 
        tasks:Task[] *
        continuationAction:Action<Task[]> *
        cancellationToken:CancellationToken *
        continuationOptions:TaskContinuationOptions *
        scheduler:TaskScheduler -> Task

Parameters

tasks
Type: System.Threading.Tasks.Task[]

The array of tasks from which to continue.

continuationAction
Type: System.Action<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.

Exception Condition
ArgumentNullException

The tasks array is null.

-or-

The continuationAction argument is null.

-or-

The scheduler argument is null.

ArgumentException

The tasks array is empty or contains a null value.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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