Task.ContinueWith Method (Action<Task>, CancellationToken, TaskContinuationOptions, TaskScheduler)
Creates a continuation that executes when the target task competes according to the specified TaskContinuationOptions. The continuation receives a cancellation token and uses a specified scheduler.
Assembly: mscorlib (in mscorlib.dll)
member ContinueWith :
continuationAction:Action<Task> *
cancellationToken:CancellationToken *
continuationOptions:TaskContinuationOptions *
scheduler:TaskScheduler -> Task
Parameters
- continuationAction
-
Type:
System.Action<Task>
An action to run according to the specified 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.
| Exception | Condition |
|---|---|
| ObjectDisposedException | The CancellationTokenSource that created the token 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. |
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.
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1