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Task.ContinueWith<TResult> Method (Func<Task, Object, TResult>, Object, TaskContinuationOptions)

Creates a continuation that executes when the target Task completes.

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

public Task<TResult> ContinueWith<TResult>(
	Func<Task, Object, TResult> continuationFunction,
	Object state,
	TaskContinuationOptions continuationOptions
)

Type Parameters

TResult

The type of the result produced by the continuation.

Parameters

continuationFunction
Type: System.Func<Task, Object, TResult>
A function to run when the Task completes. When run, the delegate will be passed the completed task and the caller-supplied state object as arguments.
state
Type: System.Object
An object representing data to be used by the continuation function.
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<TResult>
A new continuation Task<TResult>.

ExceptionCondition
ArgumentNullException

The continuationFunction argument is null.

ArgumentOutOfRangeException

The continuationOptions argument specifies an invalid value for TaskContinuationOptions.

The returned Task<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.

Windows Phone OS

Supported in: 8.1, 8.0

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