private void cbb_phong2_SelectedIndexChanged(object sender, EventArgs e)
{
DataTable dt = hd_model.getThongTinTraPhong(cbb_phong2.SelectedValue.ToString());
txt_loaiphong.Text = dt.Rows[0][0].ToString();
txt_tenkhachhang2.Text = dt.Rows[0][1].ToString();
txt_socmt2.Text = dt.Rows[0][2].ToString();
txt_dienthoai2.Text = dt.Rows[0][3].ToString();
txt_ghichu2.Text = dt.Rows[0][4].ToString();
dtp_thoigiandat2.Text = dt.Rows[0][5].ToString();
dtp_thoigiantra2.Text = dt.Rows[0][6].ToString();
lbl_dongia.Text = dt.Rows[0][7].ToString();
}
