cart.aspx.cs

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using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Collections;

public partial class reg : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (Session["lname"] == null)
            {
                MessageBox.Show(this, "请先登录后再进行此操作！");
                return;
            }
          

            bind();
        }
    }

  


    protected void bind()
    {
        shoppingcart car = new shoppingcart();
        if (Session["car"] != null)
        {
            car = (shoppingcart)Session["car"];
        }

        Repeater1.DataSource = car.orders;
        Repeater1.DataBind();

        this.Literal1.Text = car.totalcost.ToString();

    }

    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        LinkButton ibn = (LinkButton)sender;

        shoppingcart car = new shoppingcart();
        if (Session["car"] != null)
        {
            car = (shoppingcart)Session["car"];
        }
        car.deleteitem(ibn.CommandArgument);
        Session["car"] = car;

        bind();
    }
    protected void Button1_Click(object sender, EventArgs e)