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

.NET Framework 4.6 and 4.5

Creates a continuation that executes when the target Task<TResult> completes.

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

public Task ContinueWith(
	Action<Task<TResult>, Object> continuationAction,
	Object state,
	TaskContinuationOptions continuationOptions
)

Parameters

continuationAction
Type: System.Action<Task<TResult>, Object>

An action to run when the Task<TResult> 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 action.

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
A new continuation Task.

ExceptionCondition
ArgumentNullException

The continuationAction argument is null.

ArgumentOutOfRangeException

The continuationOptions argument specifies an invalid value for TaskContinuationOptions.

The returned Task 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: 4.6, 4.5

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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