ShowGoods.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.IO;
using System.Data.SqlClient;

public partial class ShowGoods : System.Web.UI.Page
{
    SqlHelper data = new SqlHelper();
    SqlConnection sqlconn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string sql = "select * from GoodsInfo where GoodsID=" + Request.QueryString["id"].ToString();
            data.RunSql("update GoodsInfo set   GoodsClick=GoodsClick+1   where GoodsID=" + Request.QueryString["id"].ToString());
            getdata(sql);
        }
    }
    private void getdata(string sql)
    {
        SqlDataReader dr = data.GetDataReader(sql);
        if (dr.Read())
        {
        
            Label2.Text = dr["GoodsName"].ToString();
            Label4.Text = dr["GoodsPrice"].ToString();
            Label5.Text = dr["GoodsNum"].ToString();
            DIV1.InnerHtml = dr["GoodsIntroduce"].ToString();
            Label6.Text = dr["GoodsClick"].ToString();
            iGPhoto.ImageUrl = "files/" + dr["GoodsPhoto"].ToString();
            Label3.Text = dr["GoodsTypeName"].ToString();
            Hidden1.Value = dr["GoodsTypeID"].ToString();
        }

    }
    protected void btnShop_Click(object sender, EventArgs e)
    {
        string Orderid;
        if (Session["UserName"] == null)
        {
            Alert.AlertAndRedirect("您还没有登录，请登录后再购买，谢谢合作！", "Default.aspx");

        }
        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())
            {
                Orderid = dr["Orderid"].ToString();
            }
            else
            {