在ASP.NET中,购物车功能可以通过Session或Cookie实现,以下是一个简单的ASP购物车源码示例:
1、数据库设计:
创建一个名为Products
的表,包含以下字段:ProductID
(主键)、ProductName
、UnitPrice
、ProdCount
(库存数量)。
2、数据访问类(SqlHelper.cs):
“`csharp
using System;
using System.Data.SqlClient;
public class SqlHelper
{
private String ConnStr = System.Configuration.ConfigurationSettings.AppSettings["ConnString"];
private SqlConnection conn = null;
public DataTable FillDataTable(String query)
{
DataTable dt = new DataTable();
using (conn = new SqlConnection(ConnStr))
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = query;
SqlDataAdapter ada = new SqlDataAdapter();
ada.SelectCommand = cmd;
ada.Fill(dt);
}
return dt;
}
public void ExecuteNonQuery(String commandText)
{
using (conn = new SqlConnection(ConnStr))
{
conn.Open();
SqlTransaction tran = conn.BeginTransaction();
try
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.Transaction = tran;
cmd.CommandText = commandText;
cmd.ExecuteNonQuery();
tran.Commit();
}
catch
{
tran.Rollback();
}
}
}
}
“`
3、产品列表页面(ProductList.aspx):
“`html
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ProductList.aspx.cs" Inherits="ProductList" %>
<!DOCTYPE html PUBLIC "//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>浏览产品列表</title>
<link href="CSS/buy.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form id="form1" runat="server">
<div id="zone">
<div align="right" class="divBorder">
<a href="shoppingcart.aspx"><img src="Images/cart.jpg" alt="我的购物车" border="0" title="查看购物车" /></a>
</div>
<br />
<div align="center" class="divBorder">
<asp:DataList ID="ProductList" runat="server" …>
…
</asp:DataList>
</div>
</div>
</form>
</body>
</html>
“`
4、购物车页面(ShoppingCart.aspx):
“`html
<%@ Page Language="C#" AutoEventWireup="false" CodeFile="ShoppingCart.aspx.cs" Inherits="ShoppingCart" %>
<!DOCTYPE html PUBLIC "//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>购物车</title>
<link href="mycss.css" type="text/css" rel="stylesheet">
</head>
<body>
<form id="Form1" runat="server">
<asp:DataGrid id="ShoppingCartDlt" runat="server" …>
<Columns>
<asp:TemplateColumn HeaderText="删除">
<ItemTemplate>
<center>
<asp:CheckBox id="chkProductID" runat="server" />
</center>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="ProdID" HeaderText="ID" />
<asp:BoundColumn DataField="ProName" HeaderText="商品名称" />
<asp:BoundColumn DataField="UnitPrice" HeaderText="单价" />
<asp:TemplateColumn HeaderText="数量">
<ItemTemplate>
<asp:TextBox id="CountTb" runat="server" Text='<%#Eval("ProdCount")%>’></asp:TextBox>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="TotalPrice" HeaderText="小计(元)" />
</Columns>
</asp:DataGrid>
</form>
</body>
</html>
“`
5、后台代码(ShoppingCart.aspx.cs):
“`csharp
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;
public partial class ShoppingCart : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindGrid();
}
}
private void BindGrid()
{
DataTable dt = new DataTable();
dt = GetShoppingCartItems();
ShoppingCartDlt.DataSource = dt;
ShoppingCartDlt.DataBind();
}
private DataTable GetShoppingCartItems()
{
DataTable dt = new DataTable();
// 从Session中获取购物车项并绑定到DataTable
// 如果Session为空,则返回一个空的DataTable
return dt;
}
}
“`
是一个基本的ASP购物车源码示例,包括数据库设计、数据访问类、产品列表页面和购物车页面的实现,你可以根据自己的需求进行修改和扩展。
以上内容就是解答有关“asp购物车源码”的详细内容了,我相信这篇文章可以为您解决一些疑惑,有任何问题欢迎留言反馈,谢谢阅读。
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