product.aspx.cs

一个很好的网上购物系统！进行了新的修改具有很多的功能！

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class ProductPage : System.Web.UI.Page
{
    int productID=0;
    void Page_Load(object sender, EventArgs e)
    {
        if (Request.QueryString["id"] != null){
                productID = int.Parse(Request.QueryString["id"].ToString());
        }
        
        if (!IsPostBack && productID!=0)
        {
            LoadProductInfo(productID);

        }
            
    }
    void LoadProductInfo(int productID) {
            Product product = new Product();
            product.Load(CatalogManager.GetProduct(productID));

            if(product.IsLoaded && product.IsActive) {
                //log the view
                Log.Write("浏览商品", "浏览", "浏览 " + product.ModelName, productID.ToString(), User.Identity.Name);
                pnlAdd.Visible = true;
                lblModelName.Text = product.ModelName;
                lblModelNumber.Text = product.ModelNumber;
                lblDescription.Text = product.Description;
                lblWeight.Text = product.Weight.ToString();
                imgProduct.ImageUrl = "images/productimages/" + product.ProductImage;

                lblUnitCost.Text = product.UnitCost.ToString("c");
                //if the product is discounted, calc out the new price
                double dPrice = product.UnitCost;
                lblPrice.Text = dPrice.ToString();
                if (product.DiscountPercent > 0) {
                    dPrice = CatalogManager.GetDiscountedPrice(product.UnitCost, product.DiscountPercent);
                    lblDiscountPrice.Visible = true;
                    lblDiscountPrice.Text = dPrice.ToString("C");
                    lblDPrice.Text = dPrice.ToString();
                    lblUnitCost.Font.Strikeout = true;
                    lblUnitCost.Text += "<br>";
                } else {

                }

                Page.Title = "商品详情: " + product.ModelName;

                if (product.AmountOnHand <= 0) {
                    lnkAddToCart.Visible = SiteConfiguration.ShowZeroInventoryItems;
                    lblOutOfStock.Visible = !SiteConfiguration.ShowZeroInventoryItems;
                }

            }else {
                lblModelName.Text = "无效商品";
                imgProduct.Visible = false;
                lnkAddToCart.Visible = false;
            }

    }
    protected void lnkAddToCart_Click(object sender, EventArgs e)
    {
        Log.Write("加入购物车", "浏览", "加入 " + lblModelName.Text, productID.ToString(), User.Identity.Name);  
        AddItemToCart();
    }
    protected void AddItemToCart()
    {
        double dPrice=0;
        
        //find out if we're dealing with a discounted item
        //if the discount label is active, this is the case
        if (lblDiscountPrice.Visible) {
            dPrice = Convert.ToDouble(lblDPrice.Text);
        } else {
            dPrice = Convert.ToDouble(lblPrice.Text);
        }
        
        ShoppingCartManager.AddItem(productID, 1, lblModelName.Text,
            lblModelNumber.Text,
            lblDescription.Text,
            dPrice,
            lblModelNumber.Text,
            Convert.ToDouble(lblWeight.Text));            

        //redirect the page to refresh the counts
        //and disable the refresher from adding more items 
        //to the cart
        //this will also allow the summary basket to load
        Response.Redirect(Request.Url.PathAndQuery);
       
    }
}