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TaskFactory<TResult>.ContinueWhenAll Method (Task[], Func<Task[], TResult>, TaskContinuationOptions)

Creates a continuation task that will be started upon the completion of a set of provided Tasks.

Namespace:  System.Threading.Tasks
Assembly:  mscorlib (in mscorlib.dll)
public Task<TResult> ContinueWhenAll(
	Task[] tasks,
	Func<Task[], TResult> continuationFunction,
	TaskContinuationOptions continuationOptions
)

Parameters

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

The array of tasks from which to continue.

continuationFunction
Type: System.Func<Task[], TResult>

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

continuationOptions
Type: System.Threading.Tasks.TaskContinuationOptions

One of the enumeration values that controls the behavior of the created continuation task. The NotOn* or OnlyOn* values are not valid.

Return Value

Type: System.Threading.Tasks.Task<TResult>
The new continuation task.
ExceptionCondition
ObjectDisposedException

One of the elements in the tasks array has been disposed.

ArgumentNullException

The tasks array is null.

-or-

The continuationFunction argument is null.

ArgumentOutOfRangeException

The continuationOptions argument specifies an invalid value.

ArgumentException

The tasks array contains a null value or is empty.

After completion, a task is in one of these states: RanToCompletion, Faulted, or Canceled states.

.NET Framework

Supported in: 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

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

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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