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StartNew Method (Action, TaskCreationOptions)

TaskFactory.StartNew Method (Action, TaskCreationOptions)

Creates and starts a Task.

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

'Declaration
Public Function StartNew ( _
	action As Action, _
	creationOptions As TaskCreationOptions _
) As Task

Parameters

action
Type: System.Action

The action delegate to execute asynchronously.

creationOptions
Type: System.Threading.Tasks.TaskCreationOptions

A TaskCreationOptions value that controls the behavior of the created Task

Return Value

Type: System.Threading.Tasks.Task
The started Task.

ExceptionCondition
ArgumentNullException

The exception that is thrown when the action argument is null.

ArgumentOutOfRangeException

The exception that is thrown when the creationOptions argument specifies an invalid TaskCreationOptions value.

Calling StartNew is functionally equivalent to creating a Task using one of its constructors and then calling Start to schedule it for execution.

Starting with the .NET Framework 4.5, you can use the Run method with an Action object as a quick way to call StartNew with default parameters. For more information and code examples, see Task.Run vs Task.Factory.StartNew in the Parallel Programming with .NET blog.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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