Task Constructor (Action<Object>, Object, CancellationToken, TaskCreationOptions)

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

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

public Task(
	Action<Object> action,
	Object state,
	CancellationToken cancellationToken,
	TaskCreationOptions creationOptions
)

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..

creationOptions
Type: System.Threading.Tasks.TaskCreationOptions

The TaskCreationOptions used to customize the task's behavior.

ExceptionCondition
ObjectDisposedException

The CancellationTokenSource that created cancellationToken has already been disposed.

ArgumentNullException

The action argument is null.

ArgumentOutOfRangeException

The creationOptions argument specifies an invalid value for TaskCreationOptions.

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, TaskCreationOptions, TaskScheduler) 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
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