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

April 12, 2014

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
)

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.

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

tasks array is null.

-or-

The continuationFunction 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.

Windows Phone OS

Supported in: 8.1, 8.0

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