/// <summary>
        /// add giatri vao combox
        /// </summary>
        /// <param name="hanhdong"></param>
        #endregion

        private void toolStripStatus_Loc_Click(object sender, EventArgs e)
        {
            frmTimKhachHangTraLaiHang tralai = new frmTimKhachHangTraLaiHang();

            tralai.ShowDialog();
        }
 private void toolStripStatus_Loc_Click(object sender, EventArgs e)
 {
     frmTimKhachHangTraLaiHang tralai = new frmTimKhachHangTraLaiHang();
     tralai.ShowDialog();
 }