private bool IsAllowSend(string tenantCode, string mobile) { SMSQueryVehicleSettingService service = new SMSQueryVehicleSettingService(); DateTime? lastSendTime = service.GetLastSendTime(tenantCode, mobile); if (lastSendTime.HasValue) { DateTime lastTime = lastSendTime.Value; int iLastSend = Convert.ToInt32(lastTime.ToString("yyyyMMdd")); DateTime dtNow = DateTime.Now; int iNow = Convert.ToInt32(dtNow.ToString("yyyyMMdd")); if (iLastSend != iNow) { return true; } else { return false; } } else { return true; } }