private static void listDeviceMessages(IoTDAClient client) { ListDeviceMessagesRequest req = new ListDeviceMessagesRequest { InstanceId = "1a7ffc5c-d89c-44dd-8265-b1653d951ce0", DeviceId = "" }; try { var resp = client.ListDeviceMessages(req); Console.WriteLine(resp); } catch (RequestTimeoutException requestTimeoutException) { Console.WriteLine(requestTimeoutException.ErrorMessage); } catch (ServiceResponseException clientRequestException) { Console.WriteLine(clientRequestException.HttpStatusCode); Console.WriteLine(clientRequestException.ErrorCode); Console.WriteLine(clientRequestException.ErrorMsg); } catch (ConnectionException connectionException) { Console.WriteLine(connectionException.ErrorMessage); } }