StartNew Method (Func(TResult), CancellationToken)

Task Parallel System.Threading

Creates and starts a Task<(Of <(TResult>)>).

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

Syntax

Visual Basic (Declaration)
Public Function StartNew ( _
	function As Func(Of TResult), _
	cancellationToken As CancellationToken _
) As Task(Of TResult)
C#
public Task<TResult> StartNew(
	Func<TResult> function,
	CancellationToken cancellationToken
)

Parameters

function
Type: System..::.Func<(Of <(TResult>)>)
A function delegate that returns the future result to be available through the Task<(Of <(TResult>)>).
cancellationToken
Type: System.Threading..::.CancellationToken
The CancellationToken that will be assigned to the new task.

Return Value

The started Task<(Of <(TResult>)>).

Remarks

Calling StartNew is functionally equivalent to creating a Task<(Of <(TResult>)>) 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.

Exceptions

ExceptionCondition
System..::.ArgumentNullExceptionThe exception that is thrown when the function argument is null.
System..::.ObjectDisposedExceptionThe provided CancellationToken has already been disposed.

See Also