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

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

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

public Task<TResult> ContinueWhenAll<TAntecedentResult>(
	Task<TAntecedentResult>[] tasks,
	Func<Task<TAntecedentResult>[], TResult> continuationFunction,
	CancellationToken cancellationToken
)

Type Parameters

TAntecedentResult

The type of the result of the antecedent tasks.

Parameters

tasks
Type: System.Threading.Tasks.Task<TAntecedentResult>[]

The array of tasks from which to continue.

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

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

cancellationToken
Type: System.Threading.CancellationToken

The cancellation token that will be assigned to the new continuation task.

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.

-or-

The CancellationTokenSource that created cancellationToken has already been disposed.

ArgumentNullException

The tasks array is null.

-or-

The continuationFunction argument is null.

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: 4.6, 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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