ContinueWith(TResult) Method (Func(Task, TResult), TaskContinuationOptions)

Task Parallel System.Threading

Creates a continuation that executes when the target Task completes.

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

Syntax

Visual Basic (Declaration)
Public Function ContinueWith(Of TResult) ( _
	continuationFunction As Func(Of Task, TResult), _
	continuationOptions As TaskContinuationOptions _
) As Task(Of TResult)
C#
public Task<TResult> ContinueWith<TResult>(
	Func<Task, TResult> continuationFunction,
	TaskContinuationOptions continuationOptions
)

Parameters

continuationFunction
Type: System..::.Func<(Of <(Task, TResult>)>)
A function to run when the Task completes. When run, the delegate will be passed the completed task as an argument.
continuationOptions
Type: System.Threading.Tasks..::.TaskContinuationOptions
Options for when the continuation is scheduled and how it behaves. This includes criteria, such as OnlyOnCanceled, as well as execution options, such as ExecuteSynchronously.

Type Parameters

TResult
The type of the result produced by the continuation.

Return Value

A new continuation Task<(Of <(TResult>)>).

Remarks

The returned Task<(Of <(TResult>)>) will not be scheduled for execution until the current task has completed. If the continuation criteria specified through the continuationOptions parameter are not met, the continuation task will be canceled instead of scheduled.

Exceptions

ExceptionCondition
System..::.ArgumentNullException The continuationFunction argument is null.
System..::.ArgumentOutOfRangeException The continuationOptions argument specifies an invalid value for TaskContinuationOptions.
System..::.ObjectDisposedException The Task has been disposed.

See Also