asp.net 实现购物车

王朝asp·作者佚名  2006-11-24
窄屏简体版  字體: |||超大  

<%@ Page language="c#" Codebehind="shoppingcart.aspx.cs" AutoEventWireup="false" Inherits="myshop.shoppingcart" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >

<HTML>

<HEAD>

<title>shoppingcart</title>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

<LINK href="mycss.css" type="text/css" rel="stylesheet">

<meta name="vs_defaultClientScript" content="JavaScript">

<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">

</HEAD>

<body>

<center>

<form id="Form1" runat="server">

<table width="500" border="0" cellspacing="0" cellpadding="0">

<tr>

<td>

<ASP:DataGrid id="ShoppingCartDlt" runat="server" Width="500" BackColor="white" BorderColor="black"

ShowFooter="false" CellPadding="3" CellSpacing="0" Font-Name="Verdana" Font-Size="8pt" HeaderStyle-BackColor="#cecfd6"

AutoGenerateColumns="false" MaintainState="true">

<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='<%#DataBinder.Eval(Container.DataItem,"ProdCount")%>'>

</asp:TextBox>

</ItemTemplate>

</asp:TemplateColumn>

<asp:BoundColumn DataField="TotalPrice" HeaderText="小计(元)" />

</Columns>

</ASP:DataGrid></td>

</tr>

</table>

<br>

<table width="500" border="0" cellspacing="0" cellpadding="0">

<tr>

<td><asp:Button id="update" runat="server" Text="更新我的购物车" CssClass="button2" /></td>

<td><asp:Button id="CheckOut" runat="server" Text="结算" CssClass="button5" />&nbsp;&nbsp;<input type="button" name="close2" value="继续购物" onClick="window.close();return false;"

class="button2"></td>

<td align="right"><br>

<asp:Label id="label" runat="server" Width="100px" Visible="True" ForeColor="#FF8080" Height="18px"></asp:Label></td>

</tr>

</table>

</form>

</center>

</body>

</HTML>

=======================================================================================

以上为HTML页面部分

==========================================================================================

using System;

using System.Collections;

using System.ComponentModel;

using System.Web.SessionState;

using System.Web;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Data;

using System.Data.OleDb;

using System.Configuration;

namespace myshop

{

/// <summary>

/// shoppingcart 的摘要说明。

/// </summary>

public class shoppingcart : System.Web.UI.Page

{

protected System.Web.UI.WebControls.DataGrid ShoppingCartDlt;

protected System.Web.UI.WebControls.Button update;

protected System.Web.UI.WebControls.Button CheckOut;

protected System.Web.UI.HtmlControls.HtmlForm Form1;

protected System.Web.UI.WebControls.Label label;

protected System.Web.UI.WebControls.CheckBox chkProductID;

protected System.Web.UI.WebControls.TextBox txtCount;

protected System.Web.UI.WebControls.TextBox CountTb;

string AddProID;

private void Page_Load(object sender, System.EventArgs e)

{

try

{

if (Session["logon"]!="yes"||Session["username"]==null)

{

Response.Redirect("error.htm") ;

}

}

catch

{

Response.Redirect("error.htm") ;

} /////////////查看用户是否已经登陆。

if(!IsPostBack)

{

if(Request.Params["mode"]=="view") //检测是否为直接查看购物车。

{

ViewShoppingCart();

Caculator();

}

if(Request.Params["productID"]!=null||Request.Params["productID"]!="")

{

AddProID=Request["productID"];

UpdateShoppingCart();

Caculator();

}

}// 在此处放置用户代码以初始化页面

}

public void CreateCartTable() //创建购物车

{

DataSet ds = new DataSet();

DataTable newDT=new DataTable("CartTable");

ds.Tables.Add(newDT);

DataColumn newDC;

newDC=new DataColumn("ProdID",System.Type.GetType("System.Int32"));

ds.Tables["CartTable"].Columns.Add(newDC);

newDC=new DataColumn("ProdCount",System.Type.GetType("System.Int32"));

newDC.DefaultValue=1;

ds.Tables["CartTable"].Columns.Add(newDC);

newDC=new DataColumn("ProName",System.Type.GetType("System.String"));

ds.Tables["CartTable"].Columns.Add(newDC);

newDC=new DataColumn("UnitPrice",System.Type.GetType("System.Double"));

ds.Tables["CartTable"].Columns.Add(newDC);

 

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