protected void gridDanhSach_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e)
        {
            string ID      = e.Keys[0].ToString();
            string MaNhom  = e.NewValues["MaNhom"].ToString();
            string TenNhom = e.NewValues["TenNhom"].ToString();
            string GhiChu  = e.NewValues["GhiChu"] == null ? "" : e.NewValues["GhiChu"].ToString();

            data = new dtNhomHangHoa();
            data.Sua(ID, MaNhom, TenNhom, GhiChu);
            e.Cancel = true;
            gridDanhSach.CancelEdit();
            LoadGrid();
        }
        protected void gridDanhSach_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e)
        {
            string ID      = e.Keys[0].ToString();
            string MaNhom  = "";
            string TenNhom = e.NewValues["TenNhom"].ToString();
            string GhiChu  = e.NewValues["GhiChu"] == null ? "" : e.NewValues["GhiChu"].ToString();

            data = new dtNhomHangHoa();
            data.Sua(ID, MaNhom, TenNhom, GhiChu);
            e.Cancel = true;
            gridDanhSach.CancelEdit();
            LoadGrid();
            dtLichSuTruyCap.ThemLichSu(Session["IDChiNhanh"].ToString(), Session["IDNhom"].ToString(), Session["IDNhanVien"].ToString(), "Quản lý nhóm hàng hóa", "Cập nhật nhóm: " + ID);
        }