userlogin.aspx.cs

这个是个未完成品 演示地址：http://www.yyzyq.com 仅以此例给正在学习编程爱好.net的朋友 希望能给大家带来帮助

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 UserLogin : System.Web.UI.Page
{
    Controls ctrl = new Controls();
    Users user = new Users();
    WorkUser wuser = new WorkUser();

    protected void Page_Load(object sender, EventArgs e)
    {
        
    }

    protected void btnLogin_Click(object sender, EventArgs e)
    {
        if (Request.Cookies["CheckCode"] == null)
        {
            JScript.Alert("您的浏览器设置已被禁用 Cookies，您必须设置浏览器允许使用 Cookies 选项后才能使用本系统。");//这里使用了js的方法
            return;
        }

        if (!Equals(Request.Cookies["CheckCode"].Value, txtCode.Text.ToUpper()))
        {
            JScript.Alert("验证码错误，请输入正确的验证码。");
            return;
        }
        else
        {
            string strUid = ctrl.GetText(txtUser);
            string strPwd = ctrl.GetText(txtPwd);
            if (Equals(wuser.GetLoginUser(strUid, strPwd,wuser.GetBrowsePage()), false))
                JScript.Alert("用户名或密码错误，请重新输入！");
            else
            {
                string ID = user.GetUserId(ctrl.GetText(txtUser));
                Response.Cookies.Add(new HttpCookie("username",ID));                
                if (rblDate.SelectedValue != "0")
                {
                    Request.Cookies["username"].Expires = DateTime.Now.AddHours(int.Parse(rblDate.SelectedValue));       
                }
                Response.Redirect("Default.aspx");
            }
        }
    }
}