login.aspx.cs

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;
using System.Data;
using System.Data.SqlClient;


public partial class reg  : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        
        if(!IsPostBack)
        {
            
            
        }
    }

        /// <summary>
    /// 登录
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnLogin_Click(object sender, EventArgs e)
    {
        //根据用户名和密码得到用户信息
        DataSet ds = SqlHelper.ExecuteforDataSet("select * from members where lname='" + txt_lname.Text + "' and pass='" + txt_pass.Text + "'");
        //判断用户是否存在
        if (ds.Tables[0].Rows.Count > 0)
        {
            DataRow dr = ds.Tables[0].Rows[0];

            //把用户信息存入到Session
            Session["lname"] = dr["lname"].ToString();
            //跳转          
            Response.Redirect("default.aspx");
        }
        else
        {
            MessageBox.Show(this, "用户名或密码错误！");
            return;
        }
    }


}