MasterPageForHome.Master.cs

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using MyWeb.DBUtility;
using MyWeb.WebUtility;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.UI;
using System.Web.UI.WebControls;
using MyWeb.DBUtility;
using MyWeb.WebUtility;
using System.Data;

namespace MyWeb
{
    public partial class MasterPageForHome : System.Web.UI.MasterPage
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!IsPostBack){
                DBHelper db = new DBHelper();
                string sql = "select * from SlideShow_Tbl where del=0";
                DataSet ds = db.Query(sql);
                string html = "";
                for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
                {
                    html += "<li class='pic'><img style='width:100%;height:350px' src='"+ds.Tables[0].Rows[i]["SlideUrl"].ToString()+"' alt='' /></li>";
                }
                lunbo.InnerHtml = html;
                if (Session["id"] == null)
                {
                    Label1.Text = "登陆/注册";
                }
                else {
                    Label1.Text = "退出";
                }
            }
        }
    }
}