Task Constructor (Action(Object), Object, CancellationToken)

Initializes a new Task with the specified action, state, and options.

Namespace:  System.Threading.Tasks
Assemblies:   System.Threading.Tasks (in System.Threading.Tasks.dll)
  mscorlib (in mscorlib.dll)

new : 
        action:Action<Object> * 
        state:Object * 
        cancellationToken:CancellationToken -> Task

Parameters

action
Type: System.Action(Object)

The delegate that represents the code to execute in the task.

state
Type: System.Object

An object representing data to be used by the action.

cancellationToken
Type: System.Threading.CancellationToken

The CancellationToken that that the new task will observe.

ExceptionCondition
ObjectDisposedException

The CancellationTokenSource that created cancellationToken has already been disposed.

ArgumentNullException

The action argument is null.

Rather than calling this constructor, the most common way to instantiate a Task object and launch a task is by calling the static TaskFactory.StartNew(Action(Object), Object, CancellationToken) method. The only advantage offered by this constructor is that it allows object instantiation to be separated from task invocation.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2015 Microsoft