Shopping1.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;
using System.Data.SqlClient;
public partial class Shopping1 : System.Web.UI.Page
{

    SqlHelper data = new SqlHelper();
    SqlConnection sqlconn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
    protected void Page_Load(object sender, EventArgs e)
    {
        this.Title = "丽水新华网上书店";
        if (!IsPostBack)
        {
            if (Session["UserName"] == null)
            {
                Response.Write("<script>alert('您还没有登录，请登录后再使用该功能!');location='javascript:history.go(-1)';</script>");
            }
            else
            {

                SqlDataReader dr = data.GetDataReader("select top 1 * from tb_Order where IsCheckout='否' and  Ordeuser='" + Session["UserName"].ToString() + "' order by id desc  ");
                if (dr.Read())
                {
                    Label5.Text = dr["Orderid"].ToString();
                }
                BinderOrder();
                BinderMenber();
            }
        }
    }
    private void BinderMenber()
    {

        SqlDataReader dr = data.GetDataReader("select * from Users where UserName='" + Session["UserName"].ToString() + "'");
        dr.Read();
        Label2.Text = dr["XingMing"].ToString();
        Label3.Text = dr["Address"].ToString();
        Label4.Text = dr["Tel"].ToString();
    }
    protected void lbtnCheck_Click(object sender, EventArgs e)
    {
        if (labMoney.Text == "0")
        {
            Alert.AlertAndRedirect("您没有购买任何图书", "Shopping.aspx");


        }
        else
        {
            string sqlstrshop2 = "update tb_OrderInfo set IsCheckout='是' ,fahuofansh='" + DropDownList1.SelectedItem.Text + "',fukuanfagnshi='直接付款'  where OrderMember='" + Session["UserName"].ToString() + "'";
        data.RunSql(sqlstrshop2);
        string sqlstrshop1 = "update tb_Order set IsCheckout='是'  where Ordeuser='" + Session["UserName"].ToString() + "'";