440petSaleWeb/Web/cart.aspx.cs

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

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

            if (Session["car"] != null)
            {
                bind();
            }
        }
    }


    /// <summary>
    /// 绑定购物车
    /// </summary>
    protected void bind()
    {
        shoppingcart car = (shoppingcart)Session["car"];
        Repeater1.DataSource = car.orders;
        Repeater1.DataBind();
        Label1.Text = car.totalcost.ToString();
    }

    protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {
        int arg = int.Parse(((ImageButton)sender).CommandArgument);
        shoppingcart car = (shoppingcart)Session["car"];
        car.deleteitem(arg.ToString());

        Session["car"] = car;
        Response.Redirect("cart.aspx");
    }

    protected void LinkButton2_Click(object sender, EventArgs e)
    {
        Response.Redirect("pet.aspx");
    }

    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        shoppingcart car = new shoppingcart();
        if (Session["car"] != null)