private void RefreshDataBindingDatPhong()
        {
            schedulerControl1.Storage.Appointments.Clear();

            List <DatPhongDTO> listDatPhong = DatPhongBUS.LayTatCaCacDatPhong(phong.MaPhong);

            foreach (DatPhongDTO datPhong in listDatPhong)
            {
                Appointment apt = schedulerControl1.Storage.CreateAppointment(AppointmentType.Normal);
                apt.Start       = datPhong.ThoiGianDatPhong;
                apt.Duration    = TimeSpan.FromMinutes(ThamSoBUS.LayKhoangThoiGianToiThieuGiuaHaiLanThue());
                apt.Subject     = "Đặt phòng";
                apt.StatusKey   = datPhong.MaDatPhong;
                apt.Description = "Khách hàng: " + KhachHangBUS.LayKhachHang(datPhong.MaKH).TenKH + "\nTiền trả trước: " + datPhong.SoTienDatTruoc.ToString("###,###,##0 VNĐ") + "\nGhi chú: " + datPhong.GhiChu;

                if (datPhong.MaTinhTrangDatPhong == 1)
                {
                    apt.LabelId = 3;
                }
                else if (datPhong.MaTinhTrangDatPhong == 2)
                {
                    apt.LabelId = 2;
                }
                else if (datPhong.MaTinhTrangDatPhong == 3)
                {
                    apt.LabelId = 1;
                }

                schedulerControl1.Storage.Appointments.Add(apt);
            }
        }