manage/mamagerLogin.aspx.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

namespace 网上订餐系统.manage
{
    public partial class mamagerLogin : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Session["admin"] = null;
        //    this.Title = "披萨先生网上订餐---管理员登陆";
        }
       
        public bool CheckAdmin(string strname, string strpwd)
        {
            SqlServer db = new SqlServer();
            db.SQL = "select count(1) from 管理员表 where 管理员ID='" + strname + "'and 管理员密码='" + strpwd + "'";
            if ((int)db.ExcuteScalar() > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            string username, pwd;

            username = tb管理员名.Text.Trim();
            pwd = tb管理员密码.Text.Trim();
            SqlServer ser = new SqlServer();
            if (this.CheckAdmin(username, pwd))
            { 
                Session["admin"] = username;
                Server.Transfer("default.aspx");
               
            }
            else
            {
                Response.Write("<script language='javascript' type='text/javascript'>alert('登陆失败！');location='" + Request.UrlReferrer.AbsoluteUri + "';</script>");
             
            }
        }
    }
}