protected void gvDSLoaiKhach_RowDeleting(object sender, GridViewDeleteEventArgs e) { LoaiKhachHangDAO lkdao = new LoaiKhachHangDAO(); int autoid = int.Parse(gvDSLoaiKhach.DataKeys[e.RowIndex].Value.ToString()); lkdao.XoaLoaiKhach(autoid); HienThiDanhSach(); }