protected void btnAdd_Click(object sender, EventArgs e) { if (!string.IsNullOrWhiteSpace(Request.QueryString["id"])) { string userID = Context.User.Identity.GetUserId(); if (userID != null) { int id = Convert.ToInt32(Request.QueryString["id"]); int amount = Convert.ToInt32(ddlAmt.SelectedValue); Cart cart = new Cart { Amount = amount, ClientID = userID, DatePurchased = DateTime.Now, IsInCart = true, ProductID = id }; Cart_Model type = new Cart_Model(); lblResults.Text = type.InsertCart(cart); } else { lblResults.Text = "Please log in to continue to order items"; } } }