DelayedTask.WhenAny(TResult) Method (Task(TResult)[])

DelayedTaskWhenAnyTResult Method (TaskTResult)

Creates a task that will complete when any of the supplied tasks have completed.

Namespace: Rackspace.Threading
Assembly: Rackspace.Threading (in Rackspace.Threading.dll) Version: 1.1.0.0

Syntax

public static Task<Task<TResult>> WhenAny<TResult>(
	params Task<TResult>[] tasks
)

Public Shared Function WhenAny(Of TResult) ( 
	ParamArray tasks As Task(Of TResult)()
) As Task(Of Task(Of TResult))

public:
generic<typename TResult>
static Task<Task<TResult>^>^ WhenAny(
	... array<Task<TResult>^>^ tasks
)

static member WhenAny : 
        tasks : Task<'TResult>[] -> Task<Task<'TResult>>

Parameters

tasks: Type: System.Threading.TasksTaskTResult
The tasks to wait on for completion.

Type Parameters

TResult: The type of the completed task.

Return Value

Type: TaskTaskTResult
A task that represents the completion of one of the supplied tasks. The return task's Result is the task that completed.

Exceptions

Exception	Condition
ArgumentNullException	If tasks is .
ArgumentException	If tasks contains any values. -or- If tasks was empty.

Exception

Condition

ArgumentNullException

If tasks is .

ArgumentException

If tasks contains any values.

-or-

If tasks was empty.

Remarks

The returned task will complete when any of the supplied tasks has completed. The returned task will always end in the RanToCompletion state with its Result set to the first task to complete. This is true even if the first task to complete ended in the Canceled or Faulted state.

Version Information

.NET for Windows Store apps

Supported in: Windows 8

.NET Framework

Supported in: 4.5, 4.0, 3.5

Portable Class Library

Supported in: Portable Class Library (Legacy), Portable Class Library

Rackspace Threading Library

Supported in: 1.1

Reference

DelayedTask Class

WhenAny Overload

Rackspace.Threading Namespace