protected void Page_Load(object sender, EventArgs e) { ((Home)this.Master).isVisible = false; if (base._NguoiDungHienTai == null) { ((Home)this.Master).isLogIn = true; } else { ((Home)this.Master).isLogIn = false; } GioHangBUS gioHangBUS = new GioHangBUS(); GioHangDTO gioHang = new GioHangDTO(); gioHang.IdSanPham = int.Parse(Request.QueryString["IdSanPham"]); gioHang.CartGuid = CartGUID; gioHang.SoLuong = 1; gioHangBUS._gioHang = gioHang; try { gioHangBUS.Insert(); } catch { Response.Redirect("Trangloi.aspx"); } Response.Redirect("~/customer/cart"); }