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

Creates a continuation that executes according to the condition specified in continuationOptions.

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

'Declaration
Public Function ContinueWith(Of TResult) ( _
	continuationFunction As Func(Of Task, TResult), _
	continuationOptions As TaskContinuationOptions _
) As Task(Of TResult)

Type Parameters

TResult

The type of the result produced by the continuation.

Parameters

continuationFunction
Type: System.Func(Of Task, TResult)

A function to run according to the condition specified in continuationOptions. 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.

Return Value

Type: System.Threading.Tasks.Task(Of TResult)
A new continuation Task(Of TResult).

ExceptionCondition
ObjectDisposedException

The Task has been disposed.

ArgumentNullException

The continuationFunction argument is null.

ArgumentOutOfRangeException

The continuationOptions argument specifies an invalid value for TaskContinuationOptions.

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.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

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

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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