InstanceContext.Extensions 属性

定义

命名空间:

System.ServiceModel

程序集:

System.ServiceModel.Duplex.dll

程序集:

System.ServiceModel.Primitives.dll

程序集:

System.ServiceModel.dll

获取与服务实例关联的扩展集合（如果有）。

public:
 property System::ServiceModel::IExtensionCollection<System::ServiceModel::InstanceContext ^> ^ Extensions { System::ServiceModel::IExtensionCollection<System::ServiceModel::InstanceContext ^> ^ get(); };

public System.ServiceModel.IExtensionCollection<System.ServiceModel.InstanceContext> Extensions { get; }

member this.Extensions : System.ServiceModel.IExtensionCollection<System.ServiceModel.InstanceContext>

Public ReadOnly Property Extensions As IExtensionCollection(Of InstanceContext)

属性值

IExtensionCollection<InstanceContext>

IExtensionCollection<T> 类型的 InstanceContext，包含服务实例扩展的实例上下文。

实现

Extensions

例外

ObjectDisposedException

与此上下文关联的服务实例已关闭，但是没有中止。

CommunicationObjectFaultedException

与此上下文关联的服务实例处于错误状态。

示例

下面的代码演示如何访问 Extensions 属性：

Uri baseAddress = new Uri("http://localhost:8000/ServiceModelSamples/service");
CalculatorService service = new CalculatorService();
ServiceHost serviceHost = new ServiceHost(service, baseAddress);
InstanceContext instanceContext = new InstanceContext(serviceHost, service);

IExtensionCollection<InstanceContext> extensions = instanceContext.Extensions;