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TaskFactory<TResult>::ContinueWhenAll Method (array<Task>, Func<array<Task>, TResult>)

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(
	array<Task^>^ tasks, 
	Func<array<Task^>^, TResult>^ continuationFunction
)

Parameters

tasks
Type: array<System.Threading.Tasks::Task>

The array of tasks from which to continue.

continuationFunction
Type: System::Func<array<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 nullptr.

-or-

The continuationFunction is nullptr.

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

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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