IBindingDeliveryCapabilities.AssuresOrderedDelivery 属性

定义

命名空间:

System.ServiceModel.Channels

程序集:

System.ServiceModel.Primitives.dll

包:

System.ServiceModel.Primitives v8.0.0

Source:

IBindingDeliveryCapabilities.cs

获取一个值，该值指示绑定是否可以支持按消息发送顺序传递消息的保证。

public:
 property bool AssuresOrderedDelivery { bool get(); };

public bool AssuresOrderedDelivery { get; }

member this.AssuresOrderedDelivery : bool

Public ReadOnly Property AssuresOrderedDelivery As Boolean

属性值

Boolean

如果消息必须按发送顺序传递，则为 true；如果消息可以不按此顺序传递，则为 false。

示例

下面的示例要求 CalculatorService 必须对有序消息传递使用 WSHttpBinding。 可靠会话和排队传递默认不用于此绑定，但可以启用它们。

<!-- Here is the configuration for a CalculatorService using a WSHttpBinding with ordered message delivery required. -->  
<?xml version="1.0" encoding="utf-8" ?>  
<configuration>  
   <system.serviceModel>  
      <services>  
         <service   
             type="Microsoft.ServiceModel.Samples.CalculatorService">  
            <!-- Use base address provided by host and a WSHttpBinding named "Binding1" -->  
            <endpoint address=""  
                      binding="wsHttpBinding"  
                      bindingConfiguration="Binding1"   
                      contract="Microsoft.ServiceModel.Samples.ICalculator" />  
         </service>  
      </services>  

      <bindings>  
         <wsHttpBinding>   
            <binding name="Binding1">           
               <!-- The next element enables a ReliableSession and required ordered delivery-->  
      <reliableSession enabled="true" ordered="true"/>  
      </binding>  
         </wsHttpBinding>  
      </bindings>  

   </system.serviceModel>  
</configuration>  

// The CalculatorService configuration has enabled a reliable session  
// with ordered delivery set to true. This means that the binding  
// requirement for ordered delivery specified by the  
// BindingRequirementsAttribute on the CalculatorService class  
// implemented below will be satisfied by this WSHttpBinding.  

using System;  
using System.ServiceModel;  

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

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

[BindingRequirements(  
  QueuedDeliveryRequirements=RequirementsMode.Disallow,  
  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;  
  }  
}  

注解

在运行时加载服务的描述时，此 AssuresOrderedDelivery 属性的值由 RequireOrderedDelivery 使用。 此检查用于确定为服务选择或创建的绑定是否满足服务的有序传递要求。