public AjaxResponse DeleteSetting(string settingid)
        {
            AjaxResponse response = new AjaxResponse();
            response.IsSuccess = true;
            try
            {
                if (string.IsNullOrWhiteSpace(settingid))
                {
                    response.IsSuccess = false;
                    response.Message = "settingid 不能为空.";
                    return response;
                }
                CIDRSettingRepository rep = new CIDRSettingRepository();
                rep.DeleteSetting(settingid);
            }
            catch (Exception ex)
            {
                response.IsSuccess = false;
                response.Message = ex.Message;
            }

            return response;
        }