login.ascx.cs

vs2005 C# sqlserver2000 制作完成

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;
using EShop.BusinessLogicLayer;


public partial class control_Login : System.Web.UI.UserControl
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (Session["userID"] != null)
            {
                PanelLogin1.Visible = false;
                PanelLogin2.Visible = true;
                lblUserID.Text = Session["userID"].ToString().Trim();
            }
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Users user = new Users();
        string userID=txtUserName.Text.Trim();
        if (user.CheckPassword(userID))
        {
            if (user.UserPwd == txtPassword.Text.Trim())
            {
                Session["userID"] = userID;
                lblUserID.Text = userID.ToString();
                PanelLogin1.Visible = false;
                PanelLogin2.Visible = true;
            }
            else
            {
                Response.Write("<script language=javascript>alert('密码错误，请重新输入！')</script>");
            }
        }
        else
        {
            Response.Write("<script language=javascript>alert('用户名不存在！')</script>");
        }
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        Session["userID"] = null;
        PanelLogin1.Visible = true;
        PanelLogin2.Visible = false;
    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        Response.Write("<script language=javascript>window.open('CartView.aspx','new','width=700,height=500')</script>");
    }

    protected void ButtonRegist_Click(object sender, EventArgs e)
    {
        //Response.Write("<Script Language=JavaScript>window.open('Regist.aspx','new','height=500,width=450')</Script>");
        Response.Redirect("Regist.aspx");

    }
}