TaskFactory.ContinueWhenAll<TAntecedentResult> Method (Task<TAntecedentResult>[], Action<Task<TAntecedentResult>[]>, CancellationToken, TaskContinuationOptions, TaskScheduler)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Creates a continuation Task that will be started upon the completion of a set of provided Tasks.
Assembly: mscorlib (in mscorlib.dll)
public Task ContinueWhenAll<TAntecedentResult>(
Task<TAntecedentResult>[] tasks,
Action<Task<TAntecedentResult>[]> continuationAction,
CancellationToken cancellationToken,
TaskContinuationOptions continuationOptions,
TaskScheduler scheduler
)
Type Parameters
- TAntecedentResult
The type of the result of the antecedent tasks.
Parameters
- tasks
- Type:
System.Threading.Tasks.Task<TAntecedentResult>
[]
The array of tasks from which to continue.
- continuationAction
- Type: System.Action<
Task<TAntecedentResult>
[]>
The action delegate to execute when all tasks in the tasks array have completed.
- cancellationToken
- Type: System.Threading.CancellationToken
The CancellationToken that will be assigned to the new continuation task.
- continuationOptions
- Type: System.Threading.Tasks.TaskContinuationOptions
The TaskContinuationOptions value that controls the behavior of the created continuation Task.
- scheduler
- Type: System.Threading.Tasks.TaskScheduler
The TaskScheduler that is used to schedule the created continuation Task.
| Exception | Condition |
|---|---|
| ArgumentNullException | The exception that is thrown when the tasks array is null. -or- The exception that is thrown when the continuationAction argument is null. -or- The exception that is thrown when the scheduler argument is null. |
| ArgumentException | The exception that is thrown when the tasks array contains a null value. -or- The exception that is thrown when the tasks array is empty. |
The NotOn* and OnlyOn* TaskContinuationOptions, which constrain for which TaskStatus states a continuation will be executed, are illegal with ContinueWhenAll.