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

.NET Framework (current version)

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

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

Syntax

public:
generic<typename TResult>
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.

Type Parameters

TResult: The type of the result that is returned by the continuationFunction delegate and associated with the created task.

Exceptions

Exception	Condition
ObjectDisposedException	An element in the tasks array has been disposed.
ArgumentNullException	The tasks array is null. -or- The continuationFunction argument is null.
ArgumentException	The tasks array is empty or contains a null value.

Universal Windows Platform
Available since 8
.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