Task<TResult>.ContinueWith Method (Action<Task<TResult>>, CancellationToken, TaskContinuationOptions, TaskScheduler)
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Creates a continuation that executes according the condition specified in continuationOptions.
Namespace: System.Threading.Tasks
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public Function ContinueWith ( _
continuationAction As Action(Of Task(Of TResult)), _
cancellationToken As CancellationToken, _
continuationOptions As TaskContinuationOptions, _
scheduler As TaskScheduler _
) As Task
public Task ContinueWith(
Action<Task<TResult>> continuationAction,
CancellationToken cancellationToken,
TaskContinuationOptions continuationOptions,
TaskScheduler scheduler
)
Parameters
- continuationAction
Type: System.Action<Task<TResult>>
An action to run according the condition specified in continuationOptions. When run, the delegate will be passed the completed task as an argument.
- cancellationToken
Type: System.Threading.CancellationToken
The CancellationToken that will be assigned to the new continuation task.
- 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.
- scheduler
Type: System.Threading.Tasks.TaskScheduler
The TaskScheduler to associate with the continuation task and to use for its execution.
Return Value
Type: System.Threading.Tasks.Task
A new continuation Task.
Exceptions
| Exception | Condition |
|---|---|
| ObjectDisposedException | The Task<TResult> has been disposed. -or- The CancellationTokenSource that created cancellationToken has already been disposed. |
| ArgumentNullException | The continuationAction argument is null. -or- The scheduler argument is null. |
| ArgumentOutOfRangeException | The continuationOptions argument specifies an invalid value for TaskContinuationOptions. |
Remarks
The returned Task will not be scheduled for execution until the current task has completed. If the criteria specified through the continuationOptions parameter are not met, the continuation task will be canceled instead of scheduled. For more information, see How to: Chain Multiple Tasks with Continuations.
Version Information
Silverlight
Supported in: 5
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
See Also