TaskFactory.ContinueWhenAny 方法

定义

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

重载

ContinueWhenAny(Task[], Action<Task>, TaskContinuationOptions)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

ContinueWhenAny(Task[], Action<Task>, CancellationToken, TaskContinuationOptions, TaskScheduler)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

ContinueWhenAny(Task[], Action<Task>)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

ContinueWhenAny(Task[], Action<Task>, CancellationToken)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TAntecedentResult,TResult>(Task<TAntecedentResult>[], Func<Task<TAntecedentResult>,TResult>, TaskContinuationOptions)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TAntecedentResult,TResult>(Task<TAntecedentResult>[], Func<Task<TAntecedentResult>,TResult>)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TAntecedentResult,TResult>(Task<TAntecedentResult>[], Func<Task<TAntecedentResult>,TResult>, CancellationToken)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TAntecedentResult,TResult>(Task<TAntecedentResult>[], Func<Task<TAntecedentResult>,TResult>, CancellationToken, TaskContinuationOptions, TaskScheduler)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TAntecedentResult>(Task<TAntecedentResult>[], Action<Task<TAntecedentResult>>)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TAntecedentResult>(Task<TAntecedentResult>[], Action<Task<TAntecedentResult>>, CancellationToken)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TAntecedentResult>(Task<TAntecedentResult>[], Action<Task<TAntecedentResult>>, TaskContinuationOptions)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TAntecedentResult>(Task<TAntecedentResult>[], Action<Task<TAntecedentResult>>, CancellationToken, TaskContinuationOptions, TaskScheduler)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TResult>(Task[], Func<Task,TResult>)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TResult>(Task[], Func<Task,TResult>, CancellationToken)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TResult>(Task[], Func<Task,TResult>, TaskContinuationOptions)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

ContinueWhenAny<TResult>(Task[], Func<Task,TResult>, CancellationToken, TaskContinuationOptions, TaskScheduler)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

ContinueWhenAny(Task[], Action<Task>, TaskContinuationOptions)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

public:
 System::Threading::Tasks::Task ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, Action<System::Threading::Tasks::Task ^> ^ continuationAction, System::Threading::Tasks::TaskContinuationOptions continuationOptions);
public System.Threading.Tasks.Task ContinueWhenAny (System.Threading.Tasks.Task[] tasks, Action<System.Threading.Tasks.Task> continuationAction, System.Threading.Tasks.TaskContinuationOptions continuationOptions);
member this.ContinueWhenAny : System.Threading.Tasks.Task[] * Action<System.Threading.Tasks.Task> * System.Threading.Tasks.TaskContinuationOptions -> System.Threading.Tasks.Task
Public Function ContinueWhenAny (tasks As Task(), continuationAction As Action(Of Task), continuationOptions As TaskContinuationOptions) As Task

参数

tasks
Task[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationAction
Action<Task>

tasks 数组中的一个任务完成时要执行的操作委托。The action delegate to execute when one task in the tasks array completes.

continuationOptions
TaskContinuationOptions

TaskContinuationOptions 值,用于控制所创建的延续 Task 的行为。The TaskContinuationOptions value that controls the behavior of the created continuation Task.

返回

Task

新的延续 TaskThe new continuation Task.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationAction 上声明的默认值为 nullcontinuationAction is null.

continuationOptions 指定了无效的 TaskContinuationOptions 值。continuationOptions specifies an invalid TaskContinuationOptions value.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

注解

NotOn * 和 OnlyOn * TaskContinuationOptions (限制 TaskStatus 将执行延续的状态)对无效 ContinueWhenAnyThe NotOn* and OnlyOn* TaskContinuationOptions, which constrain for which TaskStatus states a continuation will be executed, are illegal with ContinueWhenAny.

另请参阅

适用于

ContinueWhenAny(Task[], Action<Task>, CancellationToken, TaskContinuationOptions, TaskScheduler)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

public:
 System::Threading::Tasks::Task ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, Action<System::Threading::Tasks::Task ^> ^ continuationAction, System::Threading::CancellationToken cancellationToken, System::Threading::Tasks::TaskContinuationOptions continuationOptions, System::Threading::Tasks::TaskScheduler ^ scheduler);
public System.Threading.Tasks.Task ContinueWhenAny (System.Threading.Tasks.Task[] tasks, Action<System.Threading.Tasks.Task> continuationAction, System.Threading.CancellationToken cancellationToken, System.Threading.Tasks.TaskContinuationOptions continuationOptions, System.Threading.Tasks.TaskScheduler scheduler);
member this.ContinueWhenAny : System.Threading.Tasks.Task[] * Action<System.Threading.Tasks.Task> * System.Threading.CancellationToken * System.Threading.Tasks.TaskContinuationOptions * System.Threading.Tasks.TaskScheduler -> System.Threading.Tasks.Task
Public Function ContinueWhenAny (tasks As Task(), continuationAction As Action(Of Task), cancellationToken As CancellationToken, continuationOptions As TaskContinuationOptions, scheduler As TaskScheduler) As Task

参数

tasks
Task[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationAction
Action<Task>

tasks 数组中的一个任务完成时要执行的操作委托。The action delegate to execute when one task in the tasks array completes.

cancellationToken
CancellationToken

将指派给新的延续任务的 CancellationTokenThe CancellationToken that will be assigned to the new continuation task.

continuationOptions
TaskContinuationOptions

TaskContinuationOptions 值,用于控制所创建的延续 Task 的行为。The TaskContinuationOptions value that controls the behavior of the created continuation Task.

scheduler
TaskScheduler

用于计划所创建的延续 TaskSchedulerTaskThe TaskScheduler that is used to schedule the created continuation Task.

返回

Task

新的延续 TaskThe new continuation Task.

例外

tasks 数组为 nullThe tasks array is null.

-or- continuationAction 上声明的默认值为 nullcontinuationAction is null.

-or- scheduler 上声明的默认值为 nullscheduler is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

continuationOptions 指定了无效的 TaskContinuationOptions 值。continuationOptions specifies an invalid TaskContinuationOptions value.

已释放提供的 CancellationTokenThe provided CancellationToken has already been disposed.

注解

NotOn * 和 OnlyOn * TaskContinuationOptions (限制 TaskStatus 将执行延续的状态)对无效 ContinueWhenAnyThe NotOn* and OnlyOn* TaskContinuationOptions, which constrain for which TaskStatus states a continuation will be executed, are illegal with ContinueWhenAny.

另请参阅

适用于

ContinueWhenAny(Task[], Action<Task>)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

public:
 System::Threading::Tasks::Task ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, Action<System::Threading::Tasks::Task ^> ^ continuationAction);
public System.Threading.Tasks.Task ContinueWhenAny (System.Threading.Tasks.Task[] tasks, Action<System.Threading.Tasks.Task> continuationAction);
member this.ContinueWhenAny : System.Threading.Tasks.Task[] * Action<System.Threading.Tasks.Task> -> System.Threading.Tasks.Task
Public Function ContinueWhenAny (tasks As Task(), continuationAction As Action(Of Task)) As Task

参数

tasks
Task[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationAction
Action<Task>

tasks 数组中的一个任务完成时要执行的操作委托。The action delegate to execute when one task in the tasks array completes.

返回

Task

新的延续 TaskThe new continuation Task.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationAction 参数为 nullThe continuationAction argument is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

示例

下面的示例演示如何使用 ContinueWhenAnyContinueWhenAllThe following example shows how to use ContinueWhenAny and ContinueWhenAll:

using System;
using System.Threading;
using System.Threading.Tasks;

class ContinueWhenMultiDemo
{
    // Demonstrated features:
    // 		Task.Factory
    //		TaskFactory.ContinueWhenAll()
    //		TaskFactory.ContinueWhenAny()
    //		Task.Wait()
    // Expected results:
    // 		Three tasks are created in parallel. 
    //		Each task for a different period of time prints a number and returns it.
    //      A ContinueWhenAny() task indicates the first of the three tasks to complete.
    //      A ContinueWhenAll() task sums up the results of the three tasks and prints out the total.
    // Documentation:
    //		http://msdn.microsoft.com/library/system.threading.tasks.taskfactory_members(VS.100).aspx
    static void Main()
    {
        // Schedule a list of tasks that return integer
        Task<int>[] tasks = new Task<int>[]
            {
                Task<int>.Factory.StartNew(() => 
                    {
                        Thread.Sleep(500);
                        Console.WriteLine("Task={0}, Thread={1}, x=5", Task.CurrentId, Thread.CurrentThread.ManagedThreadId);
                        return 5;
                    }),

                Task<int>.Factory.StartNew(() => 
                    {
                        Thread.Sleep(10);
                        Console.WriteLine("Task={0}, Thread={1}, x=3", Task.CurrentId, Thread.CurrentThread.ManagedThreadId);
                        return 3;
                    }),

                Task<int>.Factory.StartNew(() => 
                    {
                        Thread.Sleep(200);
                        Console.WriteLine("Task={0}, Thread={1}, x=2", Task.CurrentId, Thread.CurrentThread.ManagedThreadId);
                        return 2;
                    })
            };

        // Schedule a continuation to indicate the result of the first task to complete
        Task.Factory.ContinueWhenAny(tasks, winner =>
        {
            // You would expect winning result = 3 on multi-core systems, because you expect
            // tasks[1] to finish first.
            Console.WriteLine("Task={0}, Thread={1} (ContinueWhenAny): Winning result = {2}", Task.CurrentId, Thread.CurrentThread.ManagedThreadId, winner.Result);
        });

        // Schedule a continuation that sums up the results of all tasks, then wait on it.
        // The list of antecendent tasks is passed as an argument by the runtime.
        Task.Factory.ContinueWhenAll(tasks,
            (antecendents) =>
            {
                int sum = 0;
                foreach (Task<int> task in antecendents)
                {
                    sum += task.Result;
                }

                Console.WriteLine("Task={0}, Thread={1}, (ContinueWhenAll): Total={2} (expected 10)", Task.CurrentId, Thread.CurrentThread.ManagedThreadId, sum);
            })
            .Wait();
    }
}
Imports System.Threading
Imports System.Threading.Tasks

Module ContinuationWhenMulti
    ' Demonstrated features:
    '   Task.Factory
    '   TaskFactory.ContinueWhenAll()
    '   TaskFactory.ContinueWhenAny()
    '   Task.Wait()
    ' Expected results:
    '   Three tasks are created in parallel. 
    '   Each task for a different period of time prints a number and returns it.
    '   A ContinueWhenAny() task indicates the first of the three tasks to complete.
    '   A ContinueWhenAll() task sums up the results of the three tasks and prints out the total.
    ' Documentation:
    '   http://msdn.microsoft.com/library/system.threading.tasks.taskfactory_members(VS.100).aspx
    Sub Main()
        ' Schedule a list of tasks that return integer
        Dim tasks As Task(Of Integer)() = New Task(Of Integer)() {
            Task(Of Integer).Factory.StartNew(Function()
                                                  Thread.Sleep(500)
                                                  Console.WriteLine("Task={0}, Thread={1}, x=5", Task.CurrentId, Thread.CurrentThread.ManagedThreadId)
                                                  Return 5
                                              End Function),
            Task(Of Integer).Factory.StartNew(Function()
                                                  Thread.Sleep(10)
                                                  Console.WriteLine("Task={0}, Thread={1}, x=3", Task.CurrentId, Thread.CurrentThread.ManagedThreadId)
                                                  Return 3
                                              End Function),
            Task(Of Integer).Factory.StartNew(Function()
                                                  Thread.Sleep(200)
                                                  Console.WriteLine("Task={0}, Thread={1}, x=2", Task.CurrentId, Thread.CurrentThread.ManagedThreadId)
                                                  Return 2
                                              End Function)}


        ' Schedule a continuation to indicate the result of the first task to complete
        Task.Factory.ContinueWhenAny(tasks, Sub(winner)
                                                ' You would expect winning result = 3 on multi-core systems, because you expect
                                                ' tasks[1] to finish first.
                                                Console.WriteLine("Task={0}, Thread={1} (ContinueWhenAny): Winning result = {2}", Task.CurrentId, Thread.CurrentThread.ManagedThreadId, winner.Result)
                                            End Sub)


        ' Schedule a continuation that sums up the results of all tasks, then wait on it.
        ' The list of antecendent tasks is passed as an argument by the runtime.
        Task.Factory.ContinueWhenAll(tasks, Sub(antecendents)
                                                Dim sum As Integer = 0
                                                For Each task__1 As Task(Of Integer) In antecendents
                                                    sum += task__1.Result
                                                Next
                                                Console.WriteLine("Task={0}, Thread={1}, (ContinueWhenAll): Total={2} (expected 10)", Task.CurrentId, Thread.CurrentThread.ManagedThreadId, sum)
                                            End Sub).Wait()
    End Sub
End Module

另请参阅

适用于

ContinueWhenAny(Task[], Action<Task>, CancellationToken)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

public:
 System::Threading::Tasks::Task ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, Action<System::Threading::Tasks::Task ^> ^ continuationAction, System::Threading::CancellationToken cancellationToken);
public System.Threading.Tasks.Task ContinueWhenAny (System.Threading.Tasks.Task[] tasks, Action<System.Threading.Tasks.Task> continuationAction, System.Threading.CancellationToken cancellationToken);
member this.ContinueWhenAny : System.Threading.Tasks.Task[] * Action<System.Threading.Tasks.Task> * System.Threading.CancellationToken -> System.Threading.Tasks.Task
Public Function ContinueWhenAny (tasks As Task(), continuationAction As Action(Of Task), cancellationToken As CancellationToken) As Task

参数

tasks
Task[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationAction
Action<Task>

tasks 数组中的一个任务完成时要执行的操作委托。The action delegate to execute when one task in the tasks array completes.

cancellationToken
CancellationToken

将指派给新的延续任务的 CancellationTokenThe CancellationToken that will be assigned to the new continuation task.

返回

Task

新的延续 TaskThe new continuation Task.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

-or- cancellationToken 已被释放。cancellationToken has already been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationAction 参数为 nullThe continuationAction argument is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty .

另请参阅

适用于

ContinueWhenAny<TAntecedentResult,TResult>(Task<TAntecedentResult>[], Func<Task<TAntecedentResult>,TResult>, TaskContinuationOptions)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

public:
generic <typename TAntecedentResult, typename TResult>
 System::Threading::Tasks::Task<TResult> ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task<TAntecedentResult> ^> ^ tasks, Func<System::Threading::Tasks::Task<TAntecedentResult> ^, TResult> ^ continuationFunction, System::Threading::Tasks::TaskContinuationOptions continuationOptions);
public System.Threading.Tasks.Task<TResult> ContinueWhenAny<TAntecedentResult,TResult> (System.Threading.Tasks.Task<TAntecedentResult>[] tasks, Func<System.Threading.Tasks.Task<TAntecedentResult>,TResult> continuationFunction, System.Threading.Tasks.TaskContinuationOptions continuationOptions);
member this.ContinueWhenAny : System.Threading.Tasks.Task<'AntecedentResult>[] * Func<System.Threading.Tasks.Task<'AntecedentResult>, 'Result> * System.Threading.Tasks.TaskContinuationOptions -> System.Threading.Tasks.Task<'Result>
Public Function ContinueWhenAny(Of TAntecedentResult, TResult) (tasks As Task(Of TAntecedentResult)(), continuationFunction As Func(Of Task(Of TAntecedentResult), TResult), continuationOptions As TaskContinuationOptions) As Task(Of TResult)

类型参数

TAntecedentResult

以前的 tasks 结果的类型。The type of the result of the antecedent tasks.

TResult

continuationFunction 委托返回并与创建的 Task<TResult> 关联的结果的类型。The type of the result that is returned by the continuationFunction delegate and associated with the created Task<TResult>.

参数

tasks
Task<TAntecedentResult>[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationFunction
Func<Task<TAntecedentResult>,TResult>

tasks 数组中的一个任务完成时要异步执行的函数委托。The function delegate to execute asynchronously when one task in the tasks array completes.

continuationOptions
TaskContinuationOptions

TaskContinuationOptions 值,用于控制所创建的延续 Task<TResult> 的行为。The TaskContinuationOptions value that controls the behavior of the created continuation Task<TResult>.

返回

Task<TResult>

新的延续 Task<TResult>The new continuation Task<TResult>.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationFunction 上声明的默认值为 nullcontinuationFunction is null.

continuationOptions 指定了无效的 TaskContinuationOptions 值。continuationOptions specifies an invalid TaskContinuationOptions value.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

注解

NotOn * 和 OnlyOn * TaskContinuationOptions (限制 TaskStatus 将执行延续的状态)对无效 ContinueWhenAnyThe NotOn* and OnlyOn* TaskContinuationOptions, which constrain for which TaskStatus states a continuation will be executed, are illegal with ContinueWhenAny.

另请参阅

适用于

ContinueWhenAny<TAntecedentResult,TResult>(Task<TAntecedentResult>[], Func<Task<TAntecedentResult>,TResult>)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

public:
generic <typename TAntecedentResult, typename TResult>
 System::Threading::Tasks::Task<TResult> ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task<TAntecedentResult> ^> ^ tasks, Func<System::Threading::Tasks::Task<TAntecedentResult> ^, TResult> ^ continuationFunction);
public System.Threading.Tasks.Task<TResult> ContinueWhenAny<TAntecedentResult,TResult> (System.Threading.Tasks.Task<TAntecedentResult>[] tasks, Func<System.Threading.Tasks.Task<TAntecedentResult>,TResult> continuationFunction);
member this.ContinueWhenAny : System.Threading.Tasks.Task<'AntecedentResult>[] * Func<System.Threading.Tasks.Task<'AntecedentResult>, 'Result> -> System.Threading.Tasks.Task<'Result>
Public Function ContinueWhenAny(Of TAntecedentResult, TResult) (tasks As Task(Of TAntecedentResult)(), continuationFunction As Func(Of Task(Of TAntecedentResult), TResult)) As Task(Of TResult)

类型参数

TAntecedentResult

以前的 tasks 结果的类型。The type of the result of the antecedent tasks.

TResult

continuationFunction 委托返回并与创建的 Task<TResult> 关联的结果的类型。The type of the result that is returned by the continuationFunction delegate and associated with the created Task<TResult>.

参数

tasks
Task<TAntecedentResult>[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationFunction
Func<Task<TAntecedentResult>,TResult>

tasks 数组中的一个任务完成时要异步执行的函数委托。The function delegate to execute asynchronously when one task in the tasks array completes.

返回

Task<TResult>

新的延续 Task<TResult>The new continuation Task<TResult>.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationFunction 上声明的默认值为 nullcontinuationFunction is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

另请参阅

适用于

ContinueWhenAny<TAntecedentResult,TResult>(Task<TAntecedentResult>[], Func<Task<TAntecedentResult>,TResult>, CancellationToken)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

public:
generic <typename TAntecedentResult, typename TResult>
 System::Threading::Tasks::Task<TResult> ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task<TAntecedentResult> ^> ^ tasks, Func<System::Threading::Tasks::Task<TAntecedentResult> ^, TResult> ^ continuationFunction, System::Threading::CancellationToken cancellationToken);
public System.Threading.Tasks.Task<TResult> ContinueWhenAny<TAntecedentResult,TResult> (System.Threading.Tasks.Task<TAntecedentResult>[] tasks, Func<System.Threading.Tasks.Task<TAntecedentResult>,TResult> continuationFunction, System.Threading.CancellationToken cancellationToken);
member this.ContinueWhenAny : System.Threading.Tasks.Task<'AntecedentResult>[] * Func<System.Threading.Tasks.Task<'AntecedentResult>, 'Result> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Result>
Public Function ContinueWhenAny(Of TAntecedentResult, TResult) (tasks As Task(Of TAntecedentResult)(), continuationFunction As Func(Of Task(Of TAntecedentResult), TResult), cancellationToken As CancellationToken) As Task(Of TResult)

类型参数

TAntecedentResult

以前的 tasks 结果的类型。The type of the result of the antecedent tasks.

TResult

continuationFunction 委托返回并与创建的 Task<TResult> 关联的结果的类型。The type of the result that is returned by the continuationFunction delegate and associated with the created Task<TResult>.

参数

tasks
Task<TAntecedentResult>[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationFunction
Func<Task<TAntecedentResult>,TResult>

tasks 数组中的一个任务完成时要异步执行的函数委托。The function delegate to execute asynchronously when one task in the tasks array completes.

cancellationToken
CancellationToken

将指派给新的延续任务的 CancellationTokenThe CancellationToken that will be assigned to the new continuation task.

返回

Task<TResult>

新的延续 Task<TResult>The new continuation Task<TResult>.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

-or- 已释放提供的 CancellationTokenThe provided CancellationToken has already been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationFunction 上声明的默认值为 nullcontinuationFunction is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

另请参阅

适用于

ContinueWhenAny<TAntecedentResult,TResult>(Task<TAntecedentResult>[], Func<Task<TAntecedentResult>,TResult>, CancellationToken, TaskContinuationOptions, TaskScheduler)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

public:
generic <typename TAntecedentResult, typename TResult>
 System::Threading::Tasks::Task<TResult> ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task<TAntecedentResult> ^> ^ tasks, Func<System::Threading::Tasks::Task<TAntecedentResult> ^, TResult> ^ continuationFunction, System::Threading::CancellationToken cancellationToken, System::Threading::Tasks::TaskContinuationOptions continuationOptions, System::Threading::Tasks::TaskScheduler ^ scheduler);
public System.Threading.Tasks.Task<TResult> ContinueWhenAny<TAntecedentResult,TResult> (System.Threading.Tasks.Task<TAntecedentResult>[] tasks, Func<System.Threading.Tasks.Task<TAntecedentResult>,TResult> continuationFunction, System.Threading.CancellationToken cancellationToken, System.Threading.Tasks.TaskContinuationOptions continuationOptions, System.Threading.Tasks.TaskScheduler scheduler);
member this.ContinueWhenAny : System.Threading.Tasks.Task<'AntecedentResult>[] * Func<System.Threading.Tasks.Task<'AntecedentResult>, 'Result> * System.Threading.CancellationToken * System.Threading.Tasks.TaskContinuationOptions * System.Threading.Tasks.TaskScheduler -> System.Threading.Tasks.Task<'Result>
Public Function ContinueWhenAny(Of TAntecedentResult, TResult) (tasks As Task(Of TAntecedentResult)(), continuationFunction As Func(Of Task(Of TAntecedentResult), TResult), cancellationToken As CancellationToken, continuationOptions As TaskContinuationOptions, scheduler As TaskScheduler) As Task(Of TResult)

类型参数

TAntecedentResult

以前的 tasks 结果的类型。The type of the result of the antecedent tasks.

TResult

continuationFunction 委托返回并与创建的 Task<TResult> 关联的结果的类型。The type of the result that is returned by the continuationFunction delegate and associated with the created Task<TResult>.

参数

tasks
Task<TAntecedentResult>[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationFunction
Func<Task<TAntecedentResult>,TResult>

tasks 数组中的一个任务完成时要异步执行的函数委托。The function delegate to execute asynchronously when one task in the tasks array completes.

cancellationToken
CancellationToken

将指派给新的延续任务的 CancellationTokenThe CancellationToken that will be assigned to the new continuation task.

continuationOptions
TaskContinuationOptions

TaskContinuationOptions 值,用于控制所创建的延续 Task<TResult> 的行为。The TaskContinuationOptions value that controls the behavior of the created continuation Task<TResult>.

scheduler
TaskScheduler

用于计划所创建的延续 TaskSchedulerTask<TResult>The TaskScheduler that is used to schedule the created continuation Task<TResult>.

返回

Task<TResult>

新的延续 Task<TResult>The new continuation Task<TResult>.

例外

tasks 数组为 nullThe tasks array is null.

-or- continuationFunction 上声明的默认值为 nullcontinuationFunction is null.

-or- scheduler 上声明的默认值为 nullscheduler is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

continuationOptions 指定了无效的 TaskContinuationOptions 值。continuationOptions specifies an invalid TaskContinuationOptions value.

已释放提供的 CancellationTokenThe provided CancellationToken has already been disposed.

注解

NotOn * 和 OnlyOn * TaskContinuationOptions (限制 TaskStatus 将执行延续的状态)对无效 ContinueWhenAnyThe NotOn* and OnlyOn* TaskContinuationOptions, which constrain for which TaskStatus states a continuation will be executed, are illegal with ContinueWhenAny.

另请参阅

适用于

ContinueWhenAny<TAntecedentResult>(Task<TAntecedentResult>[], Action<Task<TAntecedentResult>>)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

public:
generic <typename TAntecedentResult>
 System::Threading::Tasks::Task ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task<TAntecedentResult> ^> ^ tasks, Action<System::Threading::Tasks::Task<TAntecedentResult> ^> ^ continuationAction);
public System.Threading.Tasks.Task ContinueWhenAny<TAntecedentResult> (System.Threading.Tasks.Task<TAntecedentResult>[] tasks, Action<System.Threading.Tasks.Task<TAntecedentResult>> continuationAction);
member this.ContinueWhenAny : System.Threading.Tasks.Task<'AntecedentResult>[] * Action<System.Threading.Tasks.Task<'AntecedentResult>> -> System.Threading.Tasks.Task
Public Function ContinueWhenAny(Of TAntecedentResult) (tasks As Task(Of TAntecedentResult)(), continuationAction As Action(Of Task(Of TAntecedentResult))) As Task

类型参数

TAntecedentResult

以前的 tasks 结果的类型。The type of the result of the antecedent tasks.

参数

tasks
Task<TAntecedentResult>[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationAction
Action<Task<TAntecedentResult>>

tasks 数组中的一个任务完成时要执行的操作委托。The action delegate to execute when one task in the tasks array completes.

返回

Task

新的延续 TaskThe new continuation Task.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationAction 上声明的默认值为 nullcontinuationAction is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

另请参阅

适用于

ContinueWhenAny<TAntecedentResult>(Task<TAntecedentResult>[], Action<Task<TAntecedentResult>>, CancellationToken)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

public:
generic <typename TAntecedentResult>
 System::Threading::Tasks::Task ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task<TAntecedentResult> ^> ^ tasks, Action<System::Threading::Tasks::Task<TAntecedentResult> ^> ^ continuationAction, System::Threading::CancellationToken cancellationToken);
public System.Threading.Tasks.Task ContinueWhenAny<TAntecedentResult> (System.Threading.Tasks.Task<TAntecedentResult>[] tasks, Action<System.Threading.Tasks.Task<TAntecedentResult>> continuationAction, System.Threading.CancellationToken cancellationToken);
member this.ContinueWhenAny : System.Threading.Tasks.Task<'AntecedentResult>[] * Action<System.Threading.Tasks.Task<'AntecedentResult>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task
Public Function ContinueWhenAny(Of TAntecedentResult) (tasks As Task(Of TAntecedentResult)(), continuationAction As Action(Of Task(Of TAntecedentResult)), cancellationToken As CancellationToken) As Task

类型参数

TAntecedentResult

以前的 tasks 结果的类型。The type of the result of the antecedent tasks.

参数

tasks
Task<TAntecedentResult>[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationAction
Action<Task<TAntecedentResult>>

tasks 数组中的一个任务完成时要执行的操作委托。The action delegate to execute when one task in the tasks array completes.

cancellationToken
CancellationToken

将指派给新的延续任务的 CancellationTokenThe CancellationToken that will be assigned to the new continuation task.

返回

Task

新的延续 TaskThe new continuation Task.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

-or- 已释放提供的 CancellationTokenThe provided CancellationToken has already been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationAction 上声明的默认值为 nullcontinuationAction is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

另请参阅

适用于

ContinueWhenAny<TAntecedentResult>(Task<TAntecedentResult>[], Action<Task<TAntecedentResult>>, TaskContinuationOptions)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

public:
generic <typename TAntecedentResult>
 System::Threading::Tasks::Task ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task<TAntecedentResult> ^> ^ tasks, Action<System::Threading::Tasks::Task<TAntecedentResult> ^> ^ continuationAction, System::Threading::Tasks::TaskContinuationOptions continuationOptions);
public System.Threading.Tasks.Task ContinueWhenAny<TAntecedentResult> (System.Threading.Tasks.Task<TAntecedentResult>[] tasks, Action<System.Threading.Tasks.Task<TAntecedentResult>> continuationAction, System.Threading.Tasks.TaskContinuationOptions continuationOptions);
member this.ContinueWhenAny : System.Threading.Tasks.Task<'AntecedentResult>[] * Action<System.Threading.Tasks.Task<'AntecedentResult>> * System.Threading.Tasks.TaskContinuationOptions -> System.Threading.Tasks.Task
Public Function ContinueWhenAny(Of TAntecedentResult) (tasks As Task(Of TAntecedentResult)(), continuationAction As Action(Of Task(Of TAntecedentResult)), continuationOptions As TaskContinuationOptions) As Task

类型参数

TAntecedentResult

以前的 tasks 结果的类型。The type of the result of the antecedent tasks.

参数

tasks
Task<TAntecedentResult>[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationAction
Action<Task<TAntecedentResult>>

tasks 数组中的一个任务完成时要执行的操作委托。The action delegate to execute when one task in the tasks array completes.

continuationOptions
TaskContinuationOptions

TaskContinuationOptions 值,用于控制所创建的延续 Task 的行为。The TaskContinuationOptions value that controls the behavior of the created continuation Task.

返回

Task

新的延续 TaskThe new continuation Task.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationAction 上声明的默认值为 nullcontinuationAction is null.

continuationOptions 指定了无效的 TaskContinuationOptions 值。continuationOptions specifies an invalid TaskContinuationOptions value.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

注解

NotOn * 和 OnlyOn * TaskContinuationOptions (限制 TaskStatus 将执行延续的状态)对无效 ContinueWhenAnyThe NotOn* and OnlyOn* TaskContinuationOptions, which constrain for which TaskStatus states a continuation will be executed, are illegal with ContinueWhenAny.

另请参阅

适用于

ContinueWhenAny<TAntecedentResult>(Task<TAntecedentResult>[], Action<Task<TAntecedentResult>>, CancellationToken, TaskContinuationOptions, TaskScheduler)

创建一个延续 Task,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task that will be started upon the completion of any Task in the provided set.

public:
generic <typename TAntecedentResult>
 System::Threading::Tasks::Task ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task<TAntecedentResult> ^> ^ tasks, Action<System::Threading::Tasks::Task<TAntecedentResult> ^> ^ continuationAction, System::Threading::CancellationToken cancellationToken, System::Threading::Tasks::TaskContinuationOptions continuationOptions, System::Threading::Tasks::TaskScheduler ^ scheduler);
public System.Threading.Tasks.Task ContinueWhenAny<TAntecedentResult> (System.Threading.Tasks.Task<TAntecedentResult>[] tasks, Action<System.Threading.Tasks.Task<TAntecedentResult>> continuationAction, System.Threading.CancellationToken cancellationToken, System.Threading.Tasks.TaskContinuationOptions continuationOptions, System.Threading.Tasks.TaskScheduler scheduler);
member this.ContinueWhenAny : System.Threading.Tasks.Task<'AntecedentResult>[] * Action<System.Threading.Tasks.Task<'AntecedentResult>> * System.Threading.CancellationToken * System.Threading.Tasks.TaskContinuationOptions * System.Threading.Tasks.TaskScheduler -> System.Threading.Tasks.Task
Public Function ContinueWhenAny(Of TAntecedentResult) (tasks As Task(Of TAntecedentResult)(), continuationAction As Action(Of Task(Of TAntecedentResult)), cancellationToken As CancellationToken, continuationOptions As TaskContinuationOptions, scheduler As TaskScheduler) As Task

类型参数

TAntecedentResult

以前的 tasks 结果的类型。The type of the result of the antecedent tasks.

参数

tasks
Task<TAntecedentResult>[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationAction
Action<Task<TAntecedentResult>>

tasks 数组中的一个任务完成时要执行的操作委托。The action delegate to execute when one task in the tasks array completes.

cancellationToken
CancellationToken

将指派给新的延续任务的 CancellationTokenThe CancellationToken that will be assigned to the new continuation task.

continuationOptions
TaskContinuationOptions

TaskContinuationOptions 值,用于控制所创建的延续 Task 的行为。The TaskContinuationOptions value that controls the behavior of the created continuation Task.

scheduler
TaskScheduler

用于计划所创建的延续 TaskSchedulerTask<TResult>The TaskScheduler that is used to schedule the created continuation Task<TResult>.

返回

Task

新的延续 TaskThe new continuation Task.

例外

tasks 数组为 nullThe tasks array is null.

-or- continuationAction 上声明的默认值为 nullcontinuationAction is null.

-or- paramref name="scheduler" /> 为 nullparamref name="scheduler" /> is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

continuationOptions 指定了一个无效的 TaskContinuationOptions 值。continuationOptions specifies an invalid TaskContinuationOptions value.

已释放提供的 CancellationTokenThe provided CancellationToken has already been disposed.

注解

NotOn * 和 OnlyOn * TaskContinuationOptions (限制 TaskStatus 将执行延续的状态)对无效 ContinueWhenAnyThe NotOn* and OnlyOn* TaskContinuationOptions, which constrain for which TaskStatus states a continuation will be executed, are illegal with ContinueWhenAny.

另请参阅

适用于

ContinueWhenAny<TResult>(Task[], Func<Task,TResult>)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

public:
generic <typename TResult>
 System::Threading::Tasks::Task<TResult> ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, Func<System::Threading::Tasks::Task ^, TResult> ^ continuationFunction);
public System.Threading.Tasks.Task<TResult> ContinueWhenAny<TResult> (System.Threading.Tasks.Task[] tasks, Func<System.Threading.Tasks.Task,TResult> continuationFunction);
member this.ContinueWhenAny : System.Threading.Tasks.Task[] * Func<System.Threading.Tasks.Task, 'Result> -> System.Threading.Tasks.Task<'Result>
Public Function ContinueWhenAny(Of TResult) (tasks As Task(), continuationFunction As Func(Of Task, TResult)) As Task(Of TResult)

类型参数

TResult

continuationFunction 委托返回并与创建的 Task<TResult> 关联的结果的类型。The type of the result that is returned by the continuationFunction delegate and associated with the created Task<TResult>.

参数

tasks
Task[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationFunction
Func<Task,TResult>

tasks 数组中的一个任务完成时要异步执行的函数委托。The function delegate to execute asynchronously when one task in the tasks array completes.

返回

Task<TResult>

新的延续 Task<TResult>The new continuation Task<TResult>.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationFunction 上声明的默认值为 nullcontinuationFunction is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

另请参阅

适用于

ContinueWhenAny<TResult>(Task[], Func<Task,TResult>, CancellationToken)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

public:
generic <typename TResult>
 System::Threading::Tasks::Task<TResult> ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, Func<System::Threading::Tasks::Task ^, TResult> ^ continuationFunction, System::Threading::CancellationToken cancellationToken);
public System.Threading.Tasks.Task<TResult> ContinueWhenAny<TResult> (System.Threading.Tasks.Task[] tasks, Func<System.Threading.Tasks.Task,TResult> continuationFunction, System.Threading.CancellationToken cancellationToken);
member this.ContinueWhenAny : System.Threading.Tasks.Task[] * Func<System.Threading.Tasks.Task, 'Result> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Result>
Public Function ContinueWhenAny(Of TResult) (tasks As Task(), continuationFunction As Func(Of Task, TResult), cancellationToken As CancellationToken) As Task(Of TResult)

类型参数

TResult

continuationFunction 委托返回并与创建的 Task<TResult> 关联的结果的类型。The type of the result that is returned by the continuationFunction delegate and associated with the created Task<TResult>.

参数

tasks
Task[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationFunction
Func<Task,TResult>

tasks 数组中的一个任务完成时要异步执行的函数委托。The function delegate to execute asynchronously when one task in the tasks array completes.

cancellationToken
CancellationToken

将指派给新的延续任务的 CancellationTokenThe CancellationToken that will be assigned to the new continuation task.

返回

Task<TResult>

新的延续 Task<TResult>The new continuation Task<TResult>.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

-or- 已释放提供的 CancellationTokenThe provided CancellationToken has already been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationFunction 上声明的默认值为 nullcontinuationFunction is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

另请参阅

适用于

ContinueWhenAny<TResult>(Task[], Func<Task,TResult>, TaskContinuationOptions)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

public:
generic <typename TResult>
 System::Threading::Tasks::Task<TResult> ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, Func<System::Threading::Tasks::Task ^, TResult> ^ continuationFunction, System::Threading::Tasks::TaskContinuationOptions continuationOptions);
public System.Threading.Tasks.Task<TResult> ContinueWhenAny<TResult> (System.Threading.Tasks.Task[] tasks, Func<System.Threading.Tasks.Task,TResult> continuationFunction, System.Threading.Tasks.TaskContinuationOptions continuationOptions);
member this.ContinueWhenAny : System.Threading.Tasks.Task[] * Func<System.Threading.Tasks.Task, 'Result> * System.Threading.Tasks.TaskContinuationOptions -> System.Threading.Tasks.Task<'Result>
Public Function ContinueWhenAny(Of TResult) (tasks As Task(), continuationFunction As Func(Of Task, TResult), continuationOptions As TaskContinuationOptions) As Task(Of TResult)

类型参数

TResult

continuationFunction 委托返回并与创建的 Task<TResult> 关联的结果的类型。The type of the result that is returned by the continuationFunction delegate and associated with the created Task<TResult>.

参数

tasks
Task[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationFunction
Func<Task,TResult>

tasks 数组中的一个任务完成时要异步执行的函数委托。The function delegate to execute asynchronously when one task in the tasks array completes.

continuationOptions
TaskContinuationOptions

TaskContinuationOptions 值,用于控制所创建的延续 Task<TResult> 的行为。The TaskContinuationOptions value that controls the behavior of the created continuation Task<TResult>.

返回

Task<TResult>

新的延续 Task<TResult>The new continuation Task<TResult>.

例外

已释放 tasks 数组中的一个元素。One of the elements in the tasks array has been disposed.

tasks 数组为 nullThe tasks array is null.

-or- continuationFunction 上声明的默认值为 nullcontinuationFunction is null.

continuationOptions 指定了无效的 TaskContinuationOptions 值。continuationOptions specifies an invalid TaskContinuationOptions value.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

注解

NotOn * 和 OnlyOn * TaskContinuationOptions (限制 TaskStatus 将执行延续的状态)对无效 ContinueWhenAnyThe NotOn* and OnlyOn* TaskContinuationOptions, which constrain for which TaskStatus states a continuation will be executed, are illegal with ContinueWhenAny.

另请参阅

适用于

ContinueWhenAny<TResult>(Task[], Func<Task,TResult>, CancellationToken, TaskContinuationOptions, TaskScheduler)

创建一个延续 Task<TResult>,它将在提供的组中的任何任务完成后马上开始。Creates a continuation Task<TResult> that will be started upon the completion of any Task in the provided set.

public:
generic <typename TResult>
 System::Threading::Tasks::Task<TResult> ^ ContinueWhenAny(cli::array <System::Threading::Tasks::Task ^> ^ tasks, Func<System::Threading::Tasks::Task ^, TResult> ^ continuationFunction, System::Threading::CancellationToken cancellationToken, System::Threading::Tasks::TaskContinuationOptions continuationOptions, System::Threading::Tasks::TaskScheduler ^ scheduler);
public System.Threading.Tasks.Task<TResult> ContinueWhenAny<TResult> (System.Threading.Tasks.Task[] tasks, Func<System.Threading.Tasks.Task,TResult> continuationFunction, System.Threading.CancellationToken cancellationToken, System.Threading.Tasks.TaskContinuationOptions continuationOptions, System.Threading.Tasks.TaskScheduler scheduler);
member this.ContinueWhenAny : System.Threading.Tasks.Task[] * Func<System.Threading.Tasks.Task, 'Result> * System.Threading.CancellationToken * System.Threading.Tasks.TaskContinuationOptions * System.Threading.Tasks.TaskScheduler -> System.Threading.Tasks.Task<'Result>
Public Function ContinueWhenAny(Of TResult) (tasks As Task(), continuationFunction As Func(Of Task, TResult), cancellationToken As CancellationToken, continuationOptions As TaskContinuationOptions, scheduler As TaskScheduler) As Task(Of TResult)

类型参数

TResult

continuationFunction 委托返回并与创建的 Task<TResult> 关联的结果的类型。The type of the result that is returned by the continuationFunction delegate and associated with the created Task<TResult>.

参数

tasks
Task[]

在一个任务完成时继续执行的任务所在的数组。The array of tasks from which to continue when one task completes.

continuationFunction
Func<Task,TResult>

tasks 数组中的一个任务完成时要异步执行的函数委托。The function delegate to execute asynchronously when one task in the tasks array completes.

cancellationToken
CancellationToken

将指派给新的延续任务的 CancellationTokenThe CancellationToken that will be assigned to the new continuation task.

continuationOptions
TaskContinuationOptions

TaskContinuationOptions 值,用于控制所创建的延续 Task<TResult> 的行为。The TaskContinuationOptions value that controls the behavior of the created continuation Task<TResult>.

scheduler
TaskScheduler

用于计划所创建的延续 TaskSchedulerTask<TResult>The TaskScheduler that is used to schedule the created continuation Task<TResult>.

返回

Task<TResult>

新的延续 Task<TResult>The new continuation Task<TResult>.

例外

tasks 数组为 nullThe tasks array is null.

-or- continuationFunction 上声明的默认值为 nullcontinuationFunction is null.

-or- scheduler 上声明的默认值为 nullscheduler is null.

tasks 数组包含 null 值。The tasks array contains a null value.

-or- tasks 数组为空。The tasks array is empty.

continuationOptions 指定了无效的 TaskContinuationOptions 值。continuationOptions specifies an invalid TaskContinuationOptions value.

已释放提供的 CancellationTokenThe provided CancellationToken has already been disposed.

注解

NotOn * 和 OnlyOn * TaskContinuationOptions (限制 TaskStatus 将执行延续的状态)对无效 ContinueWhenAnyThe NotOn* and OnlyOn* TaskContinuationOptions, which constrain for which TaskStatus states a continuation will be executed, are illegal with ContinueWhenAny.

另请参阅

适用于