TaskFactory.ContinueWhenAll Method (Task[], Action<Task[]>, TaskContinuationOptions)
[ 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(
Task[] tasks,
Action<Task[]> continuationAction,
TaskContinuationOptions continuationOptions
)
Parameters
- tasks
- Type:
System.Threading.Tasks.Task
[]
The array of tasks from which to continue.
- continuationAction
- Type: System.Action<
Task
[]>
The action delegate to execute when all tasks in the tasks array have completed.
- continuationOptions
- Type: System.Threading.Tasks.TaskContinuationOptions
The TaskContinuationOptions value that controls the behavior of the created continuation Task.
| Exception | Condition |
|---|---|
| ObjectDisposedException | The exception that is thrown when one of the elements in the tasks array has been disposed. |
| ArgumentNullException | The exception that is thrown when the tasks array is null. -or- The exception that is thrown when the continuationAction argument is null. |
| ArgumentOutOfRangeException | The exception that is thrown when the continuationOptions argument specifies an invalid TaskContinuationOptions value. The exception that is thrown when the creationOptions argument specifies an invalid TaskCreationOptions value. For more information, see the Remarks for FromAsync |
| 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.