超市管理系统源码(喜多多)

【实例截图】

【核心代码】

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;

public partial class SysManages_Login : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Response.CacheControl = "no-cache";
        //Response.Cookies.Add(new HttpCookie("CheckCode", ""));
    }
    protected void btnLogin_Click(object sender, ImageClickEventArgs e)
    {
        //验证码的使用
        if (Request.Cookies["CheckCode"] != null && (String.Compare(Request.Cookies["CheckCode"].Value, txtV.Text.ToString().Trim(), true) != 0))
        {
            MessageBox.Show(btnLogin, btnLogin.GetType(), "验证码错误!");
            return;
        }

        string userName = this.txtLoginName.Text;
        string password = DESEncryptEx.Encrypt(this.txtPassword.Text);//调用方法,加密
        TSL.Model.SYS_users userInfo = new TSL.BLL.SYS_users().GetModel(userName,password);
        if (userInfo != null)
        {
            Session["userID"] = userInfo.ID;
            Session["userName"] = userName;
            if(this.ddlCookies.SelectedItem.Value == "0")//是否启用Cookie
                FormsAuthentication.RedirectFromLoginPage(userName, false);
            else
                FormsAuthentication.RedirectFromLoginPage(userName, false);
            Response.Redirect("Index.aspx");
        }
        else
        {
            MessageBox.Show(btnLogin,btnLogin.GetType(),"非法用户!");
        }
    }
}