基于BS结构网上商城的设计与实现 - 图文(6)

毕业设计（论文）-中国论文教育学院 www.icsv.net

get { return product_id; } set { product_id = value; } }

public string ProductDescription {

get { return product_description; } set { product_description = value; } }

public decimal ProductPrice {

get { return product_price; } set { product_price = value; } }

public int ProductNum {

get { return product_num; } set { product_num = value; } }

public DateTime ProductPubdate {

get { return product_pubdate; } set { product_pubdate = value; } }

public Products(int productid, string productdescription, decimal productprice, int productnum,DateTime productpubdate) {

product_id=productid;

product_description=productdescription; product_price=productprice; product_num=productnum;

product_pubdate =productpubdate ; }

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毕业设计（论文）-中国论文教育学院 www.icsv.net

}

购物车的类：

public class ShoppingCarts {

public ShoppingCarts() { }

Hashtable productOders = new Hashtable(); public ICollection Product {

get { return productOders.Values; } }

public void AddProductOrder(Products order) {

Products product = (Products)productOders[order.ProductID]; if (product != null) {

product.ProductNum += 1; } else {

productOders.Add(order.ProductID, order); } }

public void RemoveProductOrder(int id) {

if (productOders[id] != null) {

productOders.Remove(id); } }

public decimal TotalPrice

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毕业设计（论文）-中国论文教育学院 www.icsv.net

{ get {

decimal totalPrice = 0;

foreach (DictionaryEntry entry in productOders) {

Products product = (Products)entry.Value; totalPrice = totalPrice + product.ProductPrice * product.ProductNum; }

return totalPrice; } }

public void UpdateProductOrder(int id, Products order) {

if (productOders[id] != null) {

productOders[id] = order; } } }

4.2.2系统程序的实现

网站首页实现代码(B2Cmain.aspx.cs): using System.Data.SqlClient;

public partial class B2Cmain : System.Web.UI.Page {

protected void Page_Load(object sender, EventArgs e) {

if (!Page.IsPostBack) {

GetSourceListData();

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毕业设计（论文）-中国论文教育学院 www.icsv.net

GetDataListData(\Pictures on Products.PictureID=Pictures.PictureID\); bbsshow(); } }

ConnectionStringSettings sets =

ConfigurationManager.ConnectionStrings[\]; SqlConnection conn; protected void bbsshow() {

conn = new SqlConnection(sets.ConnectionString);

SqlCommand cmd = new SqlCommand(\bbscontent from BBS \, conn);

conn.Open();

SqlDataReader reader = cmd.ExecuteReader(); while (reader.Read()) {

Label2.Text += reader.GetString(0) + \; }

reader.Close(); conn.Close(); }

private void GetSourceListData() {

SourceList.Items.Clear();

conn = new SqlConnection(sets.ConnectionString); SqlCommand cmd = new SqlCommand(\

CategoryID,Description from Categorys order by CategoryID\, conn); conn.Open();

SqlDataReader reader = cmd.ExecuteReader(); while (reader.Read()) {

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毕业设计（论文）-中国论文教育学院 www.icsv.net

SourceList.Items.Add(new ListItem(reader[\].ToString(), reader[\].ToString())); }

reader.Close(); conn.Close(); }

private void GetDataListData(string sqlStr) {

conn = new SqlConnection(sets.ConnectionString); SqlDataAdapter da = new SqlDataAdapter(sqlStr, conn); DataSet ds = new DataSet(); da.Fill(ds);

DataList1.DataSource = ds; DataList1.DataBind(); }

protected void Button1_Click(object sender, EventArgs e) {

GetDataListData(\on Products.CategoryID=Categorys.CategoryID \ + \

Products.PictureID=Pictures.PictureID where Categorys.CategoryID=\ + Convert.ToInt32(SourceList.SelectedValue)); }

protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e) {

if (e.CommandName == \) {

int product_id =

Convert.ToInt32(DataList1.DataKeys[e.Item.ItemIndex]); Session[\] = product_id;

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