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

 

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

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

member ContinueWhenAll<'TAntecedentResult, 'TResult> : 
        tasks:Task<'TAntecedentResult>[] *
        continuationFunction:Func<Task<'TAntecedentResult>[], 'TResult> *
        cancellationToken:CancellationToken *
        continuationOptions:TaskContinuationOptions *
        scheduler:TaskScheduler -> Task<'TResult>

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 to assign to the new continuation task.

continuationOptions
Type: System.Threading.Tasks.TaskContinuationOptions

A bitwise combination of the enumeration values that control the behavior of the new continuation task. The NotOn* and OnlyOn* members are not supported.

scheduler
Type: System.Threading.Tasks.TaskScheduler

The object that is used to schedule the new continuation task.

Return Value

Type: System.Threading.Tasks.Task<'TResult>

The new continuation task.

Type Parameters

TAntecedentResult

The type of the result of the antecedent tasks.

TResult

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

Exception Condition
ArgumentNullException

The tasks array is null.

-or-

The continuationFunction argument is null.

-or-

The scheduler argument is null.

ArgumentException

The tasks array is empty or contains a null value.

ArgumentOutOfRangeException

The continuationOptions argument specifies an invalid value.

ObjectDisposedException

An element in the tasks array has been disposed.

-or-

The CancellationTokenSource that created cancellationToken has already been disposed.

Universal Windows Platform
Available since 4.5
.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
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