aspx代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DengLu.aspx.cs" Inherits="DengLu" %>
                 
     
    
      
        
       
    登录
        
       
 
        
       
                         
                    
                
        
       
                          
                    
                
        
       
                        
        
       
                              
                    
                
    
      
    
     

cs代码：

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;public partial class DengLu : System.Web.UI.Page{    private UsersDataContext context = new UsersDataContext();    protected void Page_Load(object sender, EventArgs e)    {    }    protected void Button1_Click(object sender, EventArgs e)    {        //取值        string uid = TextBox1.Text;        string pwd = TextBox2.Text;        //查数据库        var query = context.users.Where(p => p.UserName == uid && p.PassWord == pwd);        if(query.Count()>0)        {            int state = query.First().State.Value;            if (state == 0)            {                Literal1.Text = "";            }            else if(state == 1)            {                Session["uid"] = uid;                Response.Redirect("Main.aspx");            }            else            {                Literal1.Text = "";            }                 }        else        {            Literal1.Text = "";        }    }}