Parallel.ForAsync 方法

定义

命名空间:

System.Threading.Tasks

程序集:

System.Threading.Tasks.Parallel.dll

重载

ForAsync<T>(T, T, ParallelOptions, Func<T,CancellationToken,ValueTask>)	执行 for 循环，其中迭代可以并行运行。
ForAsync<T>(T, T, Func<T,CancellationToken,ValueTask>)	执行 for 循环，其中迭代可以并行运行。
ForAsync<T>(T, T, CancellationToken, Func<T,CancellationToken,ValueTask>)	执行 for 循环，其中迭代可以并行运行。

ForAsync<T>(T, T, ParallelOptions, Func<T,CancellationToken,ValueTask>)

Source:

Parallel.ForEachAsync.cs

执行 for 循环，其中迭代可以并行运行。

public:
generic <typename T>
 where T : System::Numerics::IBinaryInteger<T> static System::Threading::Tasks::Task ^ ForAsync(T fromInclusive, T toExclusive, System::Threading::Tasks::ParallelOptions ^ parallelOptions, Func<T, System::Threading::CancellationToken, System::Threading::Tasks::ValueTask> ^ body);

public static System.Threading.Tasks.Task ForAsync<T> (T fromInclusive, T toExclusive, System.Threading.Tasks.ParallelOptions parallelOptions, Func<T,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask> body) where T : System.Numerics.IBinaryInteger<T>;

static member ForAsync : 'T * 'T * System.Threading.Tasks.ParallelOptions * Func<'T, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask (requires 'T :> System.Numerics.IBinaryInteger<'T>)> -> System.Threading.Tasks.Task (requires 'T :> System.Numerics.IBinaryInteger<'T>)

Public Shared Function ForAsync(Of T As IBinaryInteger(Of T)) (fromInclusive As T, toExclusive As T, parallelOptions As ParallelOptions, body As Func(Of T, CancellationToken, ValueTask)) As Task

类型参数

T

参数

fromInclusive

T

开始索引（含）。

toExclusive

T

结束索引（不含）。

parallelOptions

ParallelOptions

一个对象，用于配置此操作的行为。

body

Func<T,CancellationToken,ValueTask>

数据源中每个元素调用一次的异步委托。

返回

Task

表示每个操作的整个任务。

例外

ArgumentNullException

body 参数为 null。

注解

该操作最多 ProcessorCount 并行执行操作。

ForAsync<T>(T, T, Func<T,CancellationToken,ValueTask>)

Source:

Parallel.ForEachAsync.cs

执行 for 循环，其中迭代可以并行运行。

public:
generic <typename T>
 where T : System::Numerics::IBinaryInteger<T> static System::Threading::Tasks::Task ^ ForAsync(T fromInclusive, T toExclusive, Func<T, System::Threading::CancellationToken, System::Threading::Tasks::ValueTask> ^ body);

public static System.Threading.Tasks.Task ForAsync<T> (T fromInclusive, T toExclusive, Func<T,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask> body) where T : System.Numerics.IBinaryInteger<T>;

static member ForAsync : 'T * 'T * Func<'T, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask (requires 'T :> System.Numerics.IBinaryInteger<'T>)> -> System.Threading.Tasks.Task (requires 'T :> System.Numerics.IBinaryInteger<'T>)

Public Shared Function ForAsync(Of T As IBinaryInteger(Of T)) (fromInclusive As T, toExclusive As T, body As Func(Of T, CancellationToken, ValueTask)) As Task

类型参数

T

参数

fromInclusive

T

开始索引（含）。

toExclusive

T

结束索引（不含）。

body

Func<T,CancellationToken,ValueTask>

数据源中每个元素调用一次的异步委托。

返回

Task

表示每个操作的整个任务。

例外

ArgumentNullException

body 参数为 null。

注解

该操作最多 ProcessorCount 并行执行操作。

ForAsync<T>(T, T, CancellationToken, Func<T,CancellationToken,ValueTask>)

Source:

Parallel.ForEachAsync.cs

执行 for 循环，其中迭代可以并行运行。

public:
generic <typename T>
 where T : System::Numerics::IBinaryInteger<T> static System::Threading::Tasks::Task ^ ForAsync(T fromInclusive, T toExclusive, System::Threading::CancellationToken cancellationToken, Func<T, System::Threading::CancellationToken, System::Threading::Tasks::ValueTask> ^ body);

public static System.Threading.Tasks.Task ForAsync<T> (T fromInclusive, T toExclusive, System.Threading.CancellationToken cancellationToken, Func<T,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask> body) where T : System.Numerics.IBinaryInteger<T>;

static member ForAsync : 'T * 'T * System.Threading.CancellationToken * Func<'T, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask (requires 'T :> System.Numerics.IBinaryInteger<'T>)> -> System.Threading.Tasks.Task (requires 'T :> System.Numerics.IBinaryInteger<'T>)

Public Shared Function ForAsync(Of T As IBinaryInteger(Of T)) (fromInclusive As T, toExclusive As T, cancellationToken As CancellationToken, body As Func(Of T, CancellationToken, ValueTask)) As Task

类型参数

T

参数

fromInclusive

T

开始索引（含）。

toExclusive

T

结束索引（不含）。

cancellationToken

CancellationToken

可用于取消每个操作的 取消标记。

body

Func<T,CancellationToken,ValueTask>

数据源中每个元素调用一次的异步委托。

返回

Task

表示每个操作的整个任务。

例外

ArgumentNullException

body 参数为 null。

OperationCanceledException

取消令牌已取消。 此异常存储在返回的任务中。

注解

该操作最多 ProcessorCount 并行执行操作。