Task<TResult>.ContinueWith<TNewResult> Method (Func<Task<TResult>, Object, TNewResult>, Object, TaskScheduler)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Creates a continuation that executes when the target Task<TResult> completes.
Assembly: mscorlib (in mscorlib.dll)
public Task<TNewResult> ContinueWith<TNewResult>(
Func<Task<TResult>, Object, TNewResult> continuationFunction,
Object state,
TaskScheduler scheduler
)
Type Parameters
- TNewResult
The type of the result produced by the continuation.
Parameters
- continuationFunction
- Type: System.Func<Task<TResult>, Object, TNewResult>
A function to run when the Task<TResult> completes. When run, the delegate will be passed the completed task and the caller-supplied state object as arguments.
- state
- Type: System.Object
An object representing data to be used by the continuation function.
- scheduler
- Type: System.Threading.Tasks.TaskScheduler
The TaskScheduler to associate with the continuation task and to use for its execution.
| Exception | Condition |
|---|---|
| ArgumentNullException | The continuationFunction argument is null. |
| ArgumentNullException | The scheduler argument is null. |
The returned Task<TResult> will not be scheduled for execution until the current task has completed, whether it completes due to running to completion successfully, faulting due to an unhandled exception, or exiting out early due to being canceled.