login.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;

public partial class manage_login : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session.Contents["admin"] != null)
            Session.Contents["admin"] = null;
    }
    protected void button_Login_Click(object sender, EventArgs e)
    {
        string username = this.Text_Admin.Text.Trim();
        string password = this.Text_PassWord.Text.Trim();
        string validate = this.Text_Validate.Text;
        int purview=1;
        Md5Pw md5 = new Md5Pw();
        if (username.Length > 0 && username.Length < 11 && password.Length > 3 && password.Length < 11 && Session.Contents["validate"] != null && validate == Session.Contents["validate"].ToString() && SqlStore.SqlAdminLogin(username, md5.Md5(password),out purview))
        {
            Session.Contents["validate"] = null;
            Session.Add("username", username);//普通登陆
            Session.Add("admin", purview);//管理登陆
            Response.Redirect("default.aspx");
        }
        Response.Write("<script language='javascript' type='text/javascript'>alert('登陆失败！');</script>");
    }
}