private static void addDeviceGroup(IoTDAClient client) { AddDeviceGroupRequest req = new AddDeviceGroupRequest { Body = new AddDeviceGroupDTO() { Name = "GroupA2", Description = "GroupA1" } }; try { var resp = client.AddDeviceGroup(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); } }