• Article

TaskFactory.StartNew Method (Action<Object>, Object)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Creates and starts a Task.

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

Syntax

'Declaration
Public Function StartNew ( _
    action As Action(Of Object), _
    state As Object _
) As Task

public Task StartNew(
    Action<Object> action,
    Object state
)

Parameters

  • state
    Type: System.Object
    An object containing data to be used by the action delegate.

Return Value

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

Exceptions

Exception Condition
ArgumentNullException

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

Remarks

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

However, unless creation and scheduling must be separated, StartNew is the recommended approach for both simplicity and performance.

Version Information

Silverlight

Supported in: 5

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.