//Load
        public int LoadLoaiBaiViet()
        {
            List<LOAIBAIVIET_getall_chitietResult> lt = new List<LOAIBAIVIET_getall_chitietResult>();

            BUSLoaiBaiViet BUSLoaiBaiViet = new BUSLoaiBaiViet();

            lt = BUSLoaiBaiViet.SelectLOAIBAIVIETsAll_chitiet();
            if (lt.Count > 0)
            {
                this.GridViewLoaiBaiViet.DataSource = lt;
                GridViewLoaiBaiViet.DataBind();
                PanelDanhSach.Visible = true;
                PanelMessage.Visible = false;
                return lt.Count;
            }
            else
            {
                PanelDanhSach.Visible = false;
                PanelMessage.Visible = true;
                return 0;
            }
        }