DeliveryRequirementsAttribute.RequireOrderedDelivery 属性

定义

命名空间:

System.ServiceModel

程序集:

System.ServiceModel.Primitives.dll

包:

System.ServiceModel.Primitives v8.0.0

Source:

DeliveryRequirementsAttribute.cs

指定绑定是否必须支持已排序消息。

public:
 property bool RequireOrderedDelivery { bool get(); void set(bool value); };

public bool RequireOrderedDelivery { get; set; }

member this.RequireOrderedDelivery : bool with get, set

Public Property RequireOrderedDelivery As Boolean

属性值

Boolean

true 指示 Windows Communication Foundation (WCF) 确认绑定必须支持消息排序;否则为 false。 默认值为 false。

示例

下面的代码示例使用 DeliveryRequirementsAttribute 特性指示 WCF 在运行时确认实际绑定是否支持有序消息。

using System;
using System.ServiceModel;

[ServiceContract]
interface ICalculatorService
{
  [OperationBehavior()]
  int Add(int a, int b);

  [OperationContract]
  int Subtract(int a, int b);
}

[DeliveryRequirementsAttribute(
  QueuedDeliveryRequirements=QueuedDeliveryRequirementsMode.NotAllowed,
  RequireOrderedDelivery=true
)]
class CalculatorService: ICalculatorService
{
  public int Add(int a, int b)
  {
    Console.WriteLine("Add called.");
    return a + b;
  }

  public int Subtract(int a, int b)
  {
    Console.WriteLine("Subtract called.");
    return a - b;
  }

  public int Multiply(int a, int b)
  {
    return a * b;
  }
}

Imports System.ServiceModel

<ServiceContract()> _
Public Interface ICalculatorService

    <OperationBehavior()> _
    Function Add(ByVal a As Integer, ByVal b As Integer) As Integer

    <OperationContract()> _
    Function Subtract(ByVal a As Integer, ByVal b As Integer) As Integer
End Interface

<DeliveryRequirements( _
    QueuedDeliveryRequirements:=QueuedDeliveryRequirementsMode.NotAllowed, _
    RequireOrderedDelivery:=True _
)> _
Class CalculatorService
    Public Function add(ByVal a As Integer, ByVal b As Integer) As Integer
        Console.WriteLine("Add called")
        Return a + b
    End Function

    Public Function Subtract(ByVal a As Integer, ByVal b As Integer) As Integer
        Console.WriteLine("Subtract called.")
        Return a - b
    End Function

    Public Function Multiply(ByVal a As Integer, ByVal b As Integer) As Integer
        Return a * b
    End Function
End Class

注解

将 RequireOrderedDelivery 属性设置为 false 指示 WCF 不执行验证。