public void load_list_dichvu()
        {
            PhongBUS            pbus    = new PhongBUS();
            ChiTietThuePhongBUS cttpbus = new ChiTietThuePhongBUS();

            dgvCTDV.DataSource = DataTable_DSDV(ctdvbus.getctdv(MaThue, cttpbus.getMaKhach_By_MaPhong_TrangThai(pbus.maPhong_byTen(TenPhong), false)));
        }
        /**Tạo sự kiện kích chuột phải vào label để lấy các thông tin trong label đó
         * ra truyền qua các form khác* */
        public void lblred_Click(object sender, MouseEventArgs e)
        {
            PhongBUS            pbus    = new PhongBUS();
            ChiTietThuePhongBUS cttpbus = new ChiTietThuePhongBUS();
            ThuePhongBUS        tpbus   = new ThuePhongBUS();
            Label lbl = sender as Label;

            if (e.Button == MouseButtons.Right)
            {
                string   ttPhong  = lbl.Text;
                string[] lsPhong  = ttPhong.Split('\r');
                string   tenPhong = lsPhong[0].Trim();
                frmTraKhachLe.TenPhong   = tenPhong;
                frmDatPhong.TenLoaiPhong = "Phòng " + lpbus.getTen_Byma(pbus.getLoaiPhong_ByID(pbus.maPhong_byTen(tenPhong)));
                frmTraKhachLe.LoaiPhong  = "Phòng " + lpbus.getTen_Byma(pbus.getLoaiPhong_ByID(pbus.maPhong_byTen(tenPhong)));
                frmDatPhong.TenPhong     = tenPhong;
                frmTraKhachLe.MaThue     = cttpbus.getMaThue_By_MaPhong_TrangThai(pbus.maPhong_byTen(tenPhong), false);
                frmDatPhong.maThue       = cttpbus.getMaThue_By_MaPhong_TrangThai(pbus.maPhong_byTen(tenPhong), false);
                frmDatPhong.maKhachHang  = cttpbus.getMaKhach_By_MaPhong_TrangThai(pbus.maPhong_byTen(tenPhong), false);
                frmDoiPhong.TenPhong     = tenPhong;
                frmDoiPhong.maThue       = cttpbus.getMaThue_By_MaPhong_TrangThai(pbus.maPhong_byTen(tenPhong), false);
                TenPhong = tenPhong;
            }
        }