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?System.Data.OleDb;
using?System.IO;
using?System.Text;


//各個操作窗口由Panel的可見與隱藏的改變實現

public?partial?class?_Default?:?System.Web.UI.Page?
{
????protected?void?Page_Load（object?sender?EventArgs?e）
????{

????}
????protected?void?Login_Click（object?sender?EventArgs?e）
????{
????????Pan_Login.Visible?=?true;
????????pan_regist.Visible?=?false;
????}
????protected?void?Bt_Login_Click（object?sender?ImageClickEventArgs?e）
????{
????????//用戶登錄
????????string?username_l?=?Text_Username.Text;
????????string?password_l?=?Text_Password.Text;
????????
???????????//如果是管理員，則進入main管理員頁面
????????????if?（username_l?==?“admin“?&&?password_l?==?“admin“）
????????????{
????????????????Pan_Login.Visible?=?false;
????????????????Lb_Me.Text?=?username_l?+?“?您好！歡迎回來…“;
????????????????link_Login.Visible?=?false;
????????????????link_Regist.Visible?=?false;
????????????????Lb_Me.Visible?=?true;
????????????????Logout.Visible?=?true;
????????????????Lb_Changepw.Visible?=?true;
????????????}
?????????????else
????????????{
????????????????//如果不是管理員，則到表user中查找用戶名密碼?
????????????????OleDbConnection?conn?=?new?OleDbConnection（）;
????????????????conn.ConnectionString?=?“Provider=Microsoft.Jet.OLEDB.4.0;“?+?“Data?Source=“?+?Server.MapPath（“.\\App_Data\\ebuy.mdb“）;
????????????????conn.Open（）;
????????????????OleDbCommand?com?=?new?OleDbCommand（）;
????????????????com.Connection?=?conn;
????????????????com.CommandText?=?“select?count（*）?from?[user]?where?[username]=@username?and?[password]=@password“;
????????????????OleDbParameter?pa?=?new?OleDbParameter（“@username“?OleDbType.VarChar?20）;
????????????????pa.Value?=?Text_Username.Text;
????????????????com.Parameters.Add（pa）;

????????????????pa?=?new?OleDbParameter（“@password“?OleDbType.VarChar?20）;
????????????????pa.Value?=?Text_Password.Text;
????????????????com.Parameters.Add（pa）;
????????????????int?i?=?（int）com.ExecuteScalar（）;

????????????????if?（i?!=?0）
????????????????{
????????????????????Pan_Login.Visible?=?false;
????????????????????Lb_Me.Text?=?username_l?+?“?您好！歡迎回來…“;
????????????????????link_Login.Visible?=?false;
????????????????????link_Regist.Visible?=?false;
????????????????????Lb_Me.Visible?=?true;
????????????????????Logout.Visible?=?true;
????????????????????Lb_Changepw.Visible?=?true;


????????????????}
????????????????else
????????????????{
????????????????????Response.Write（“ript?language=‘javascript‘>alert（‘用戶名或密碼錯誤‘）;ript>“）;
????????????????}
????????????

????????}
????????
????}
????protected?void?Bt_Close_Click（object?sender?ImageClickEventArgs?e）
????{
????????Pan_Login.Visible?=?false;
????}
????protected?void?link_Regist_Click（objec

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????151552??2009-05-24?20:42??EbuyLogin\App_Data\ebuy.mdb

?????文件???????1527??2009-05-20?23:14??EbuyLogin\EbuyLogin.sln

????..A..H.??????8704??2009-05-25?17:32??EbuyLogin\EbuyLogin.suo

?????文件??????10424??2009-05-24?15:45??EbuyLogin\image\agree.bmp

?????文件?????357078??2009-05-24?16:12??EbuyLogin\image\Back.bmp

?????文件??????49679??2009-05-24?21:08??EbuyLogin\image\Back.png

?????文件?????411172??2009-05-24?21:11??EbuyLogin\image\Back.psd

?????文件??????10422??2009-05-24?15:35??EbuyLogin\image\ButnBlue.bmp

?????文件??????10422??2009-05-24?15:36??EbuyLogin\image\ButnOrange.bmp

?????文件??????10424??2009-05-24?15:48??EbuyLogin\image\cancle.bmp

?????文件???????2608??2009-05-24?16:56??EbuyLogin\image\close.bmp

?????文件??????14216??2009-05-24?17:12??EbuyLogin\image\Headline.bmp

?????文件??????14216??2009-05-24?20:16??EbuyLogin\image\HeadlineChange.bmp

?????文件??????14216??2009-05-24?20:11??EbuyLogin\image\HeadlineFind.bmp

?????文件??????14216??2009-05-24?20:09??EbuyLogin\image\HeadlineLogin.bmp

?????文件??????14216??2009-05-24?20:15??EbuyLogin\image\HeadlineRegist.bmp

?????文件??????10424??2009-05-24?16:22??EbuyLogin\image\login.bmp

?????文件?????937964??2009-05-24?19:58??EbuyLogin\image\main.PNG

?????文件??????10424??2009-05-24?15:49??EbuyLogin\image\no.bmp

?????文件??????10424??2009-05-24?15:47??EbuyLogin\image\regist.bmp

?????文件??????10424??2009-05-24?16:20??EbuyLogin\image\registB.bmp

?????文件??????10424??2009-05-24?15:46??EbuyLogin\image\submit.bmp

?????文件??????10424??2009-05-24?15:44??EbuyLogin\image\Sure.bmp

?????文件??????19928??2009-05-24?16:38??EbuyLogin\image\title.bmp

?????文件??????27294??2009-05-25?17:32??EbuyLogin\main.aspx

?????文件???????9851??2009-05-31?10:02??EbuyLogin\main.aspx.cs

?????文件???????1546??2009-05-20?23:18??EbuyLogin\Web.Config

?????目錄??????????0??2009-05-31?12:36??EbuyLogin\App_Data

?????目錄??????????0??2009-05-31?12:36??EbuyLogin\image

?????目錄??????????0??2009-05-31?12:36??EbuyLogin

............此處省略3個文件信息