System.Threading.Tasks Namespace ()

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.NET Framework Class Library

System.Threading.Tasks Namespace

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The System.Threadings.Tasks namespace provides types that simplify the work of writing concurrent and asynchronous code. The main types are Task which represents an asynchronous operation that can be waited on and cancelled, and Task<(Of <(TResult>)>), which is a task that can return a value. The Factory class provides static methods for creating and starting tasks, and the TaskScheduler class provides the default thread scheduling infrastructure.

Classes

	Class	Description
	Parallel	Provides support for parallel loops and regions.
	ParallelLoopState	Enables iterations of Parallel loops to interact with other iterations. An instance of this class is provided by the Parallel class to each loop; you can not create instances in your user code.
	ParallelOptions	Stores options that configure the operation of methods on the Parallel class.
	Task	Represents an asynchronous operation.
	Task<(Of <(TResult>)>)	Represents an asynchronous operation that can return a value.
	TaskCanceledException	Represents an exception used to communicate task cancellation.
	TaskCompletionSource<(Of <(TResult>)>)	Represents the producer side of a Task<(Of <(TResult>)>) unbound to a delegate, providing access to the consumer side through the Task property.
	TaskExtensions	Provides a set of static (Shared in Visual Basic) methods for working with specific kinds of Task instances.
	TaskFactory	Provides support for creating and scheduling Task objects.
	TaskFactory<(Of <(TResult>)>)	Provides support for creating and scheduling Task<(Of <(TResult>)>) objects.
	TaskScheduler	Represents an object that handles the low-level work of queuing tasks onto threads.
	TaskSchedulerException	Represents an exception used to communicate an invalid operation by a TaskScheduler.
	UnobservedTaskExceptionEventArgs	Provides data for the event that is raised when a faulted Task's exception goes unobserved.

Structures

	Structure	Description
	ParallelLoopResult	Provides completion status on the execution of a Parallel loop.

Enumerations

	Enumeration	Description
	TaskContinuationOptions	Specifies the behavior for a task that is created by using the ContinueWith or ContinueWith method.
	TaskCreationOptions	Specifies flags that control optional behavior for the creation and execution of tasks.
	TaskStatus	Represents the current stage in the lifecycle of a Task.