private void Btnsearchreseridcheckout_Click(object sender, EventArgs e)
        {
            koneksi kon = new koneksi();

            Data.Reservation dr = new Data.Reservation();
            dr.No_reservasi = tbxreservationidcheckout.Text;
            try
            {
                if (new Controller.ClientReservation().searchreservid(dr))
                {
                    binding();
                    kon.openConnection();
                    dr.No_reservasi = tbxreservationidcheckout.Text;
                    string          query = "select date_in, date_out, checkin from tb_reservation where no_reservation='" + dr.No_reservasi + "'";
                    MySqlDataReader dre   = kon.DataReader(query);
                    dre.Read();
                    tbxdateincheckout.Text  = dre["date_in"].ToString();
                    tbxdateoutcheckout.Text = dre["date_out"].ToString();
                    tbxcheckincheckout.Text = dre["checkin"].ToString();
                    kon.closeConnection();
                }
                else
                {
                    MessageBox.Show("Reservation ID belum terdaftar!");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Masukan Reserv. ID");
            }
        }
        private void Btnsearchreservbilpay_Click(object sender, EventArgs e)
        {
            koneksi kon = new koneksi();

            Data.Reservation dr = new Data.Reservation();
            dr.No_reservasi = tbxreservationidbilpay.Text;
            try
            {
                if (new Controller.ClientReservation().searchreservid(dr))
                {
                    binding();
                    Data.Reservation drv = new Data.Reservation();
                    kon.openConnection();
                    drv.No_reservasi = tbxreservationidbilpay.Text;
                    string          query = "select billing, cara_bayar from tb_reservation where no_reservation='" + drv.No_reservasi + "'";
                    MySqlDataReader dre   = kon.DataReader(query);
                    dre.Read();
                    tbxbilling.Text         = dre["billing"].ToString();
                    tbxcarabayarbilpay.Text = dre["cara_bayar"].ToString();
                    kon.closeConnection();
                }
                else
                {
                    MessageBox.Show("Reservation ID belum terdaftar!");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Masukan Reserv. ID");
            }
        }
        public string generateKode()
        {
            string  query = "Select Max(no_reservation) as ReservID from tb_reservation";
            koneksi k     = new koneksi();

            k.openConnection();
            MySqlDataReader dr = k.DataReader(query);

            dr.Read();
            string kode = dr["ReservID"].ToString();
            int    angka;

            if (kode == "")
            {
                angka = 0;
            }
            else
            {
                angka = int.Parse(kode.Substring(3, 3));
            }
            angka += 1;
            string id = "RV-" + (string.Format("{0:00}", angka.ToString().PadLeft(3, '0')));

            k.closeConnection();
            return(id);
        }
        public void lemparidentity(string no_identity)
        {
            Data.Client dc    = new Data.Client();
            koneksi     konek = new koneksi();

            dc.No_identity = label6.Text;
            konek.openConnection();
            string          query = "select no_identity from tb_client where no_identity='" + no_identity + "'";
            MySqlDataReader dr    = konek.DataReader(query);

            dr.Read();
            label6.Text = dr["no_identity"].ToString();
            konek.closeConnection();
        }