c# - ICommunicationObject.State 不起作用？

Question

你好，

我用 DuplexChannelFactory 创建了我的 WCF 客户端，问题是当我这样做时：

((ICommunicationObject)this.GetMyServiceInterfaceChannel).State

我得到以下异常：

无法在“System.ServiceModel.ICommunicationObject”类型的实例上获取字段或调用方法，因为它是远程对象的代理。

为什么？

我需要检查通道是否出现故障。

编辑1：

ClientService clientService = new ClientService();
                InstanceContext context = new InstanceContext(clientService);

                DuplexChannelFactory<My.ServiceContracts.IMyClientService> factory = new DuplexChannelFactory<My.ServiceContracts.IMyClientService>(context, connectionName);

                factory.Credentials.UserName.UserName = anvandarNamn;
                factory.Credentials.UserName.Password = password;


                return factory.CreateChannel();

Answer 1

Cast as IClientChannel, then check the State

But be carefull that the State is only updated when you make a call. If you want to test that the channel doesn't timeout, it's not possible untill you make a call that throw the exception.