ShoppingCart.aspx.cs

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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
{
    public string nze;
    //Hashtable hashCar;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            /*判断是否登录*/
            if (Session["ShopCart"] == null)
            {
                //如果没有购物，则给出相应信息，并隐藏按钮
                this.labMessage.Text = "您还没有购物！";
                this.labMessage.Visible = true;        //显示提示信息
                this.lnkbtnCheck.Visible = false;      //隐藏“前往服务台”按钮
                this.lnkbtnClear.Visible = false;      //隐藏“清空购物车”按钮
                this.lnkbtnContinue.Visible = false;   //隐藏“继续购物”按钮

            }
            else
            {
                Hashtable hashCar = (Hashtable)Session["ShopCart"]; //获取其购物车
                if (hashCar.Count == 0)
                {
                    //如果没有购物，则给出相应信息，并隐藏按钮
                    this.labMessage.Text = "您购物车中没有服装！";
                    this.labMessage.Visible = true;        //显示提示信息
                    this.lnkbtnCheck.Visible = false;      //隐藏“前往服务台”按钮
                    this.lnkbtnClear.Visible = false;      //隐藏“清空购物车”按钮
                    this.lnkbtnContinue.Visible = false;   //隐藏“继续购物”按钮

                }
                else
                {
                    //设置购物车内容的数据源
                    DataTable dtTable = new DataTable();
                    DataColumn column1 = new DataColumn("No");        //序号列
                    DataColumn column2 = new DataColumn("GBianHao");    //服装代号
                    DataColumn column3 = new DataColumn("GName");  //服装名称
                    DataColumn column4 = new DataColumn("GNum");       //数量
                    DataColumn column5 = new DataColumn("GPrice");     //单价
                    DataColumn column6 = new DataColumn("TotalPrice");//总价
                    dtTable.Columns.Add(column1);  //添加新列            
                    dtTable.Columns.Add(column2);
                    dtTable.Columns.Add(column3);
                    dtTable.Columns.Add(column4);
                    dtTable.Columns.Add(column5);
                    dtTable.Columns.Add(column6);
                    DataRow row;