Creates a continuation that executes when the target Task<TResult> completes.
Namespace: System.Threading.Tasks
Assembly: mscorlib (in mscorlib.dll)
public Task<TNewResult> ContinueWith<TNewResult>(
Func<Task<TResult>, Object, TNewResult> continuationFunction,
Object state,
TaskContinuationOptions continuationOptions
)
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.
- continuationOptions
- Type: System.Threading.Tasks.TaskContinuationOptions
Options for when the continuation is scheduled and how it behaves. This includes criteria, such as OnlyOnCanceled, as well as execution options, such as ExecuteSynchronously.
| Exception | Condition |
|---|---|
| ArgumentNullException | The continuationFunction argument is null. |
| ArgumentOutOfRangeException | The continuationOptions argument specifies an invalid value for TaskContinuationOptions. |
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.
The continuationFunction, when executed, should return a Task<TResult>. This task's completion state will be transferred to the task returned from the ContinueWith call.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
