ShowFoodInfo.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 ShowFoodInfo : System.Web.UI.Page
{
    SqlHelper data = new SqlHelper();
    DBClass db = new DBClass();
    private SqlConnection con = new SqlConnection();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            int id = int.Parse(Request.QueryString["id"].ToString());
            SqlDataReader dr = data.GetDataReader("select * from GoodsInfo where GoodsID=" + id);
            dr.Read();
            txtGName.Text = dr["GoodsName"].ToString();
            Label2.Text = dr["GoodsTypeName"].ToString();
            Label3.Text = dr["GoodsSmallTypeName"].ToString();
            txtGIntroduce.Text = dr["GoodsIntroduce"].ToString();
           
            Image1.ImageUrl = "uploads/" + dr["GoodsPhoto"].ToString();
            Label1.Text = dr["GoodsIsTeJia"].ToString();
            Label4.Text = dr["GoodsIsTuiJian"].ToString();

            this.Hidden1.Value = dr["GoodsTypeID"].ToString();
            DandData();//绑定数据
           
        }

    }
    protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {
     
            //if (Session["username"] == null)
            //{
            //    Response.Write("<script>alert('您还没有登录，请登录后再评论，谢谢合作！');location='javascript:history.go(-1)';</script>");
            //}
            //else
            //{
                Response.Redirect("Pinlun.aspx?id=" + int.Parse(Request.QueryString["id"].ToString()) + "");
            //}
      
    }
    protected void btnPinlun_Click(object sender, EventArgs e)
    {
        Response.Redirect("Pinlun.aspx?id=" + int.Parse(Request.QueryString["id"].ToString()) + "");
    }
    //为下拉列表添加选择项
    private void getListItem()
    {
        for (int i = 0; i < Convert.ToInt32(DBClass.Num); i++)
        {