主要学习代码：

Login.aspx:

  1.     <!--第一种方式-->
  2.     <%--  <script type="text/javascript">
  3.         function Go() {
  4.             var name = document.getElementById("txtName");
  5.             var pwd = document.getElementById("txtPwd");
  6.             var code = document.getElementById("txtCode");
  7.             if (name.value == "") {
  8.                 alert("请输入用户名");
  9.             }
  10.             else if (pwd.value == "") {
  11.                 alert("请输入密码");
  12.             }
  13.             else if (code.value == "") {
  14.                 alert("请输入验证码");
  15.             }
  16.             else {
  17.                 //哈哈，不知道怎么了这里用不了链式编程了
  18.                 var btn = document.getElementById("btnLogin");
  19.                 btn.setAttribute("type", "submit");
  20.                 btn.onsubmit;
  21.             }
  22.         };
  23.     </script>--%>
  24.     <script type="text/javascript">
  25.         function Go() {
  26.             var name = document.getElementById("txtName");
  27.             var pwd = document.getElementById("txtPwd");
  28.             var code = document.getElementById("txtCode");
  29.             if (name.value == "") {
  30.                 alert("请输入用户名");
  31.                 return false;
  32.             }
  33.             else if (pwd.value == "") {
  34.                 alert("请输入密码");
  35.                 return false;
  36.             }
  37.             else if (code.value == "") {
  38.                 alert("请输入验证码");
  39.                 return false;
  40.             }
  41.             return true;
  42.         };
  43.     </script>
  44.     <style type="text/css">
  45.         .input {
  46.             font-size: 16px;
  47.             width: 150px;
  48.             margin: 3px;
  49.             vertical-align: text-bottom;
  50.         }
  51.     </style>
  52. </head>
  53. <body>
  54.     <div id="Login" style="width: 350px; height: 150px; background-color: #00ff21; padding: 5px; position:fixed;top:50%;left:50%;margin:-100px 0 0 -175px;">
  55.         <form method="post" action="Login.aspx">
  56.             用户名：<input class="input" type="text" name="txtName" id="txtName" /><br />
  57.             密&nbsp;&nbsp;码：<input class="input" type="password" name="txtPwd" id="txtPwd" /><br />
  58.             验证码：<input class="input" type="text" name="txtCode" id="txtCode" /><img src="VerifyCode.ashx" onclick="this.src='VerifyCode.ashx?times='+new Date();" title="点击更换验证码" alt="验证码" style="height: 40px; margin-left: 10px;" /><br />
  59.             <div style="float: left; margin: 8px;">
  60.                 <!--第一种方式-->
  61.                 <%--<input type="button" value="登录" id="btnLogin" onclick="Go()"/>--%><!--不能用submit作为名字--><input type="checkbox" name="chkAuto" id="chkAuto" /><label for="chkAuto">一周内自动登录</label>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type="submit" value="登录" onclick="return Go()" style="margin-right: 18px; float: right;" />
  62.             </div>
  63.         </form>
  64.     </div>
  65. </body>

Login.aspx.cs

  1. public partial class Login : System.Web.UI.Page
  2. {
  3.     Web.BLL.TransferAction action = null;
  4.     protected void Page_Load(object sender, EventArgs e)
  5.     {
  6.         //刷新登录。。。
  7.         string name, code, pwd;
  8.         code = Request.Form["txtCode"];
  9.         if (null == Request.Cookies["cName"] && Request.Cookies["cPwd"] == null)
  10.         {
  11.             if (code != null)
  12.             {
  13.                 if (code == Session["code"].ToString().ToLower())
  14.                 {
  15.         name = Request.Form["txtName"];
  16.                     pwd = Request.Form["txtPwd"];
  17.                     action = new Web.BLL.TransferAction();
  18.                     if (action.IsExist(name, pwd))
  19.                     {
  20.                         if (Request.Form["chkAuto"] != null)//选中 on
  21.                         {
  22.                             //实际(加密[user+Identity+key+...])并不是这样实现自动登录的，只是简单原理仅供学习。
  23.                             HttpCookie cookieName = new HttpCookie("cName", name);
  24.                             HttpCookie cookiePwd = new HttpCookie("cPwd");
  25.                             cookiePwd.Value = pwd;
  26.                             cookiePwd.Expires = DateTime.Now.AddMinutes();
  27.                             cookieName.Expires = DateTime.Now.AddMinutes();
  28.                             Response.Cookies.Add(cookieName);
  29.                             Response.Cookies.Add(cookiePwd);//已经向浏览器发送了Cookie。
  30.                         }
  31.                         Session["name"] = name;
  32.                         // Response.Cookies.Add(cookiePwd);后UrlReferrer不为null
  33.                         Response.Redirect("List.aspx");
  34.                     }
  35.                     else
  36.                     {
  37.                         Response.Write("<script>alert(\"用户名或密码错误。\");</script>");
  38.                     }
  39.                 }
  40.                 else
  41.                 {//向浏览器输出js脚本
  42.                     //// 第一个参数产生随机键
  43.                     //但是必须是<form runat="server" />
  44.                     //Page.ClientScript.RegisterClientScriptBlock(this.GetType(), Guid.NewGuid().ToString(), "alert(\"验证码错误。\");", true);
  45.                     //Page.ClientScript.registerstartupscript(this.gettype(), guid.newguid().tostring(), "alert(\"验证码错误。\");", true);
  46.                     Response.Write("<script>alert('验证码错误')</script>");
  47.                 }
  48.             }
  49.         }
  50.         else
  51.         {
  52.             action = new Web.BLL.TransferAction();
  53.             if (action.IsExist(Request.Cookies["cName"].Value, Request.Cookies["cPwd"].Value))
  54.             {
  55.                 Session["name"] = Request.Cookies["cName"].Value;
  56.                 //这里没有向浏览器输出任何东西，所以List的UrlReferrer为null
  57.                 //Response.Redirect("List.aspx");
  58.                 //所以不用上面的用下面的
  59.                 Response.Write("自动登录成功，<span id='span' style=\"color:red;\">3</span> 秒后跳转。<script>var sec=2; setInterval(function (){if(sec<0){window.location='List.aspx';}else{document.getElementById(\"span\").innerHTML=sec;sec--;}},1000);</script>");
  60.                 //停止执行页面。
  61.                 Response.End();
  62.             }
  63.             else
  64.             {
  65.                 Response.Write("<script>alert(\"自动登录失败，请手动登录.\");</script>");
  66.             }
  67.         }
  68.     }
  69. }

List.aspx

  1.    <style type="text/css">
  2.         .head {
  3.             width: 250px;
  4.             margin: 30px auto;
  5.         }
  6.  
  7.         table {
  8.             border-left: 1px solid #000;
  9.             border-top: 1px solid #000;
  10.             margin: 10px auto;
  11.             padding: 0px;
  12.             width: 500px;
  13.             text-align: center;
  14.         }
  15.  
  16.         td {
  17.             border-right: 1px solid #000;
  18.             border-bottom: 1px solid #000;
  19.             padding: 5px;
  20.         }
  21.     </style>
  22. </head>
  23. <body>
  24.     <form id="form1">
  25.         <div class="head">姓名：<%=Web.Model.Users.USER!=null?Web.Model.Users.USER.Name:"" %> &nbsp;&nbsp;&nbsp;&nbsp;学号：<%=Web.Model.Users.USER!=null?Web.Model.Users.USER.Num:"" %></div>
  26.         <div>
  27.             <table cellspacing="0">
  28.                 <tr>
  29.                     <td>ID</td>
  30.                     <td>C#</td>
  31.                     <td>SQL</td>
  32.                     <td>ASP.NET</td>
  33.                     <td>Edit</td>
  34.                 </tr>
  35.                 <%Response.Write(sb.ToString()); %>
  36.             </table>
  37.         </div>
  38.     </form>
  39. </body>

List.aspx.cs

  1.  public System.Text.StringBuilder sb = new System.Text.StringBuilder();
  2.  
  3.     protected void Page_Load(object sender, EventArgs e)
  4.     {
  5.  
  6.         //window.location=下有UrlReferrer吗？ 答案：YES
  7.         if (Session["name"] != null && Request.UrlReferrer.ToString().Contains("Login.aspx"))
  8.         {
  9.             sb.Append("<tr><td>");
  10.             sb.Append(Web.Model.Users.USER.ID.ToString());
  11.             sb.Append("</td><td>");
  12.             if (Web.Model.Users.USER.sNUM != null)
  13.             {
  14.                 sb.Append(Web.Model.Users.USER.sNUM.CSharp == null ? "" : Web.Model.Users.USER.sNUM.CSharp.ToString());
  15.                 sb.Append("</td><td>");
  16.                 sb.Append(Web.Model.Users.USER.sNUM.SQL == null ? "" : Web.Model.Users.USER.sNUM.SQL.ToString());
  17.                 sb.Append("</td><td>");
  18.                 sb.Append(Web.Model.Users.USER.sNUM.ASPNET == null ? "" : Web.Model.Users.USER.sNUM.ASPNET.ToString());
  19.             }
  20.             else
  21.             {
  22.                 sb.Append("</td><td></td><td>");
  23.             }
  24.             sb.Append("</td><td>");
  25.             sb.Append("<a href='Edit.aspx?access=" + Web.Model.Users.USER.Access + "'>编辑</a>");
  26.             sb.Append("</td></tr>");
  27.         }
  28.         else
  29.         {
  30.             Response.Redirect("Forbidden.aspx");
  31.         }
  32.     }

Modify.aspx.cs

  1.   private Web.BLL.TransferAction action = null;
  2.     protected void Page_Load(object sender, EventArgs e)
  3.     {
  4.         if (Request.UrlReferrer != null && Request.UrlReferrer.ToString().Contains("Edit.aspx?access="))
  5.         {
  6.             int result = ;
  7.             //提交表单时有空的情况？
  8.             //管理员
  9.             string name = Request.Form["txtMName"];
  10.             string pwd = Request.Form["txtMPwd"];
  11.             string num = Request.Form["txtMNum"];
  12.             //用户
  13.             string access = Request.Form["txtMAccess"];
  14.             //Score
  15.             string csharp = Request.Form["txtMCSharp"];
  16.             string sql = Request.Form["txtMSQL"];
  17.             string aspnet = Request.Form["txtMASPNET"];
  18.             //id
  19.             string id = Request.Form["id_Modify"];
  20.             //
  21.             if (csharp == null)
  22.             {
  23.                 Web.Model.Users user = new Web.Model.Users();
  24.                 user.Name = name;
  25.                 user.Pwd = pwd;
  26.                 user.Num = num;
  27.                 user.Access = access == null ? null : (bool?)(bool.Parse((access == "" ? "false" : "true")));
  28.                 user.ID = int.Parse(id);
  29.                 action = new Web.BLL.TransferAction();
  30.                 //重点：
  31.                 //事实上你修改了用户密码：要重新向客户端重置Cookie
  32.                 result = action.Modify(user);
  33.                 if (result == )
  34.                 {
  35.                     HttpCookie cname = new HttpCookie("cName", num);
  36.                     HttpCookie cpwd = new HttpCookie("cPwd", pwd);
  37.                     cname.Expires = DateTime.Now.AddHours();
  38.                     cpwd.Expires = DateTime.Now.AddHours();
  39.                     Response.Cookies.Add(cname);
  40.                     Response.Cookies.Add(cpwd);
  41.                 }
  42.             }
  43.             else
  44.             {
  45.                 Web.Model.Score score = new Web.Model.Score();
  46.                 score.CSharp = csharp == "" ? null : (int?)int.Parse(csharp);
  47.                 score.SQL = sql == "" ? null : (int?)int.Parse(sql);
  48.                 score.ASPNET = aspnet == "" ? null : (int?)int.Parse(aspnet);
  49.                 score.ID = int.Parse(id);
  50.                 action = new Web.BLL.TransferAction();
  51.                 result = action.Modify(score);
  52.             }
  53.             //action = new Web.BLL.TransferAction();
  54.             if (result == )
  55.             {
  56.                 Response.Write("数据修改成功，<span id=\"sInfo\" style=\"color:red;\">3</span>秒后，自动跳转。<script>var s=3;setInterval(function(){if(s<0){window.location='Edit.aspx?access=true';}else{document.getElementById(\"sInfo\").innerHTML=s;s--;}},1000);</script>");
  57.             }
  58.             else
  59.             {
  60.                 //数据插入失败。
  61.                 Response.Write("数据修改失败，<span id=\"sInfo\" style=\"color:red;\">3</span>秒后，自动跳转。<script>var s=3;setInterval(function(){if(s<0){window.location='Edit.aspx?access=true';}else{document.getElementById(\"sInfo\").innerHTML=s;s--;}},1000);</script>");
  62.             }
  63.         }
  64.         else
  65.         {
  66.             Response.Redirect("Forbidden.aspx");
  67.         }
  68.     }

Edit.aspx

  1.   <style type="text/css">
  2.         div p {
  3.             font-size: xx-large;
  4.             color: #ff006e;
  5.             text-align: center;
  6.         }
  7.  
  8.         table {
  9.             /*border-left: 1px solid #000;
  10.             border-top: 0px solid #000;*/
  11.             border: none;
  12.             margin: 0px auto;
  13.             padding: 3px;
  14.         }
  15.  
  16.         td {
  17.             border-left: 1px solid #000;
  18.             border-right: 1px solid #000;
  19.             border-bottom: 1px solid #f00;
  20.             padding: 5px;
  21.             text-align: center;
  22.             width: 100px;
  23.         }
  24.     </style>
  25.     <script type="text/javascript">
  26.         function Show() {
  27.             document.getElementById(arguments[0]).style.display = "block";
  28.         };
  29.         function Cancel(id) {
  30.             document.getElementById(id).style.display = "none";
  31.         };
  32.         function Del(id) {
  33.             //这里没有AJAX的异步请求滴。很假很假的模拟。
  34.             if (confirm("确定删除吗？")) {
  35.                 window.location = "Del.aspx?id=" + id;
  36.             }
  37.         };
  38.         function tbl(innerHtml) {
  39.             document.getElementById("tbl").innerHTML = innerHtml;
  40.         };
  41.         function GO() {
  42.             //3个公共的输入框
  43.             if (document.getElementById(arguments[0]).value == "") {
  44.                 alert("请输入名字"); return false;
  45.             }
  46.             if (document.getElementById(arguments[1]).value == "") {
  47.                 alert("请输入密码"); return false;
  48.             }
  49.             if (document.getElementById(arguments[2]).value == "") {
  50.                 alert("请输入学号"); return false;
  51.             }
  52.             //非管理员的修改/添加用户
  53.             if (arguments.length == 4 || document.getElementById("txtMAccess")) {//
  54.                 var c = true;
  55.                 if (arguments[3] != "txtAccess") {
  56.                     if (document.getElementById("txtMAccess").value == "")
  57.                         c = false;
  58.                 }
  59.                 else {//添加用户
  60.                     if (document.getElementById("txtAccess").value == "")
  61.                         c = false;
  62.                 }
  63.                 if (!c) {
  64.                     alert("请输入权限"); return false;
  65.                 }
  66.             }
  67.             return true;
  68.         };
  69.         //可行否？：href='javascript:Show();GetTrObj();';//答案：YES。
  70.         //弹出层显示
  71.         function GetTrObj() {
  72.             var tr, innerHtml;
  73.             if (arguments[0] == "u") {//u:用户
  74.                 innerHtml = <%=tblU %>
  75.                 tr = document.getElementById("u" + arguments[1]);
  76.                 if (tr.childNodes[tr.childElementCount - 2].textContent == "0") {//非管理员，没有设计对管理员的权限修改
  77.                     innerHtml += <%=tblUAdd%>
  78.                     tbl(innerHtml);
  79.                     document.getElementById("txtMAccess").value = 0;
  80.                 }
  81.                 else
  82.                     tbl(innerHtml);
  83.                 document.getElementById('txtMName').value = tr.childNodes.item(1).textContent;
  84.                 document.getElementById('txtMPwd').value = tr.children.item(2).innerHTML;
  85.                 document.getElementById('txtMNum').value = tr.childNodes[3].innerText;
  86.                 //给事件动态传递参数
  87.                 //提取修改 管理员3个 用户4个 的公共输入框不能为空。
  88.                 document.getElementById("sub").onclick = function () { return GO('txtMName', 'txtMPwd', 'txtMNum'); };
  89.             }
  90.             else {//s:成绩
  91.                 innerHtml = <%=tblS%>
  92.                 tr = document.getElementById("s" + arguments[1]);
  93.                 tbl(innerHtml);
  94.                 document.getElementById('txtMCSharp').value = tr.childNodes.item(2).textContent;
  95.                 document.getElementById('txtMSQL').value = tr.children.item(3).innerHTML;
  96.                 document.getElementById('txtMASPNET').value = tr.childNodes[4].innerText;
  97.                 //Score修改
  98.                 //因为成绩是可为null 可以直接submit->post  不用GO验证
  99.             }
  100.             //表单ID
  101.             document.getElementById("id_Modify").value = arguments[1];
  102.         };
  103.     </script>
  104. </head>
  105. <body>
  106.     <!--none-->
  107.     <input type="hidden" value="<%=json %>" />
  108.     <div id="hidden" style="display: none;">
  109.         <div>
  110.             <p>管理员编辑页面</p>
  111.         </div>
  112.         <form id="form1">
  113.             <table cellspacing="0" style="margin-top: 60px;">
  114.                 <tr style="border-bottom: 1px; padding: 10px;">
  115.                     <td colspan="5" style="text-align: left; padding-left: 60px; padding-bottom: 15px; border-right: none; border-left: none;">管理员：&nbsp;<%=(Web.Model.Users.USER!=null&&access!=null)?Web.Model.Users.USER.Name:"" %></td>
  116.                     <td style="text-align: center; padding-bottom: 15px; border-right: none; border-left: none;"><a href="javascript:Show('Add');">添加</a></td>
  117.                 </tr>
  118.                 <tr>
  119.                     <td>ID</td>
  120.                     <td>Name</td>
  121.                     <td>Pwd</td>
  122.                     <td>Number</td>
  123.                     <td>Access</td>
  124.                     <td>编辑</td>
  125.                 </tr>
  126.                 <%=sbUser %>
  127.             </table>
  128.             <table cellspacing="0" style="margin-top: 80px;">
  129.                 <tr>
  130.                     <td colspan="6" style="text-align: center; padding-bottom: 15px; border-left: none; border-right: none;">成绩列表</td>
  131.                 </tr>
  132.                 <tr>
  133.                     <td>ID</td>
  134.                     <td>Number</td>
  135.                     <td>C#</td>
  136.                     <td>SQL</td>
  137.                     <td>ASP.NET</td>
  138.                     <td>编辑</td>
  139.                 </tr>
  140.                 <%=sbScore %>
  141.             </table>
  142.         </form>
  143.     </div>
  144.     <!--Add-->
  145.     <div id="Add" style="width: 500px; height: 170px; top: 50%; left: 50%; margin: -100px 0 0 -250px; position: fixed; display: none; z-index: 101; background-color: #808080; opacity: 0.9;">
  146.         <br />
  147.         <!--什么也没写到本页面-->
  148.         <form action="Add.aspx" method="post" id="frmAdd">
  149.             <div style="text-align: center; padding: 10px;">
  150.                 姓名：<input type="text" name="txtName" id="txtName" />
  151.                 密码：<input type="text" name="txtPwd" id="txtPwd" /><br />
  152.                 学号：<input type="text" name="txtNum" id="txtNum" />
  153.                 权限：<input type="text" name="txtAccess" id="txtAccess" value="0" /><br />
  154.                 &nbsp;&nbsp;&nbsp;C#：<input type="text" name="txtCSharp" id="txtCSharp" />
  155.                 &nbsp;SQL：<input type="text" name="txtSQL" id="txtSQL" /><br />
  156.                 ASP.Net：<input type="text" name="txtASPNET" id="txtASPNET" />
  157.             </div>
  158.             <div style="width: auto; float: right; margin: 10px auto; padding: 2px;">
  159.                 <!--添加7个输入框 参数中的4个不能为空-->
  160.                 <input type="submit" value="确定" id="btnOK" onclick="return GO('txtName', 'txtPwd', 'txtNum', 'txtAccess')" />&nbsp;&nbsp;<input type="button" value="取消" id="btnCancel" onclick="    javascript: Cancel('Add');" />&nbsp;&nbsp;
  161.             </div>
  162.         </form>
  163.     </div>
  164.     <!--Modify-Admin-->
  165.     <div id="A_Modify" style="display: none; width: 300px; height: 180px; background-color: #0b9b05; opacity: 0.9; left: 50%; top: 50%; margin: -90px 0 0 -150px; position: fixed;">
  166.         <form action="Modify.aspx" method="post">
  167.             <input type="hidden" name="id_Modify" id="id_Modify" />
  168.             <div id="tbl" style="width: 202px; height: auto; margin: 0 auto; padding-top: 28px;">
  169.             </div>
  170.             <div style="margin-top: 20px; float: right; margin-right: 40px;">
  171.                 <input type="submit" value="确定" id="sub" />
  172.                 <input type="button" value="取消" onclick="javascript: Cancel('A_Modify');" />
  173.             </div>
  174.         </form>
  175.     </div>
  176.     <div style="text-align: center; bottom: 10px; margin-top: 100px;">
  177.         <span>管理员请谨慎操作</span>
  178.     </div>
  179. </body>

Edit.aspx.cs

  1.     protected string json;
  2.     public string tblU = "'姓名：<input type=\"text\" name=\"txtMName\" id=\"txtMName\"/><br />密码：<input type=\"text\" name=\"txtMPwd\" id=\"txtMPwd\" /><br />学号：<input type=\"text\" name=\"txtMNum\" id=\"txtMNum\" /><br />';";
  3.     public string tblUAdd="'权限：<input type=\"text\" name=\"txtMAccess\" id=\"txtMAccess\" /><br />';";
  4.     public string tblS = "'C#：<input type=\"text\" name=\"txtMCSharp\" id=\"txtMCSharp\"/><br />SQL：<input type=\"text\" name=\"txtMSQL\" id=\"txtMSQL\"/><br />ASP.NET：<input type=\"text\" name=\"txtMASPNET\" id=\"txtMASPNET\" /><br />';";
  5.     private List<Web.Model.Users> lsUsers = null;
  6.     public Dictionary<int, Web.Model.Users> dUS = null;
  7.     public object access = null;
  8.     public System.Text.StringBuilder sbUser, sbScore;
  9.     private Web.BLL.TransferAction action = null;
  10.     protected void Page_Load(object sender, EventArgs e)
  11.     {
  12.         access = Request.QueryString["access"];
  13.         //这里为什么一直请求。
  14.         if (access != null && bool.Parse(access.ToString()) == true && Request.UrlReferrer != null)
  15.         {
  16.             //显示body
  17.             Response.Write("<script>window.onload=function(){document.getElementById(\"hidden\").style.display = \"block\";};</script>");
  18.             action = new Web.BLL.TransferAction();
  19.             //1.得到所有的Users和Score
  20.             lsUsers = action.GetUsers();
  21.  
  22.             //JavaScriptSerializer js = new JavaScriptSerializer();
  23.             //json = js.Serialize(lsUsers);
  24.             // JavaScriptConverter
  25.             if (lsUsers != null)
  26.             {
  27.                 sbUser = new System.Text.StringBuilder();
  28.                 sbScore = new System.Text.StringBuilder();
  29.             }
  30.             foreach (Web.Model.Users item in lsUsers)
  31.             {
  32.                 //为获取tr对象
  33.                 sbUser.Append("<tr id=\"u" + item.ID + "\"><td>");
  34.                 sbUser.Append(item.ID);
  35.                 sbUser.Append("</td><td>");
  36.                 sbUser.Append(item.Name);
  37.                 sbUser.Append("</td><td>");
  38.                 sbUser.Append(item.Pwd);
  39.                 sbUser.Append("</td><td>");
  40.                 sbUser.Append(item.Num);
  41.                 sbUser.Append("</td><td>");
  42.                 if (item.Access == true)
  43.                 {
  44.                     sbUser.Append();
  45.                     sbUser.Append("</td><td>");
  46.                     //管理员的话没有删除。假定只有一个管理员，
  47.                     //扩展的话可以修改Access：但是
  48.                     //查询出来的Access==true的count必须大于1
  49.                     sbUser.Append("<a href='javascript:Show(\"A_Modify\"," + item.ID + ");GetTrObj(\"u\"," + item.ID + ");'>修改</a>");
  50.                 }
  51.                 else
  52.                 {
  53.                     sbUser.Append();
  54.                     sbUser.Append("</td><td>");
  55.                     sbUser.Append("<a href='javascript:Show(\"A_Modify\"," + item.ID + ");GetTrObj(\"u\"," + item.ID + ");'>修改</a>&nbsp;&nbsp;<a href='javascript:Del(" + item.ID + ");'>删除</a>");
  56.                 }
  57.                 sbUser.Append("</td></tr>");
  58.                 if (item.sNUM != null)
  59.                 {
  60.                     sbScore.Append("<tr id=\"s" + item.sNUM.ID + "\"><td>");
  61.                     sbScore.Append(item.sNUM.ID);
  62.                     sbScore.Append("</td><td>");
  63.                     sbScore.Append(item.sNUM.Number);
  64.                     sbScore.Append("</td><td>");
  65.                     sbScore.Append(item.sNUM.CSharp);
  66.                     sbScore.Append("</td><td>");
  67.                     sbScore.Append(item.sNUM.SQL);
  68.                     sbScore.Append("</td><td>");
  69.                     sbScore.Append(item.sNUM.ASPNET);
  70.                     sbScore.Append("</td><td>");
  71.                     sbScore.Append("<a href='javascript:Show(\"A_Modify\"," + item.ID + ");GetTrObj(\"s\"," + item.sNUM.ID + ");'>修改</a>");
  72.                     // sbScore.Append("</td><td>");
  73.                     sbScore.Append("</td></tr>");
  74.                 }
  75.             }
  76.             // dUS = action.GetUsersAndScore();
  77.             //2.连接成字符串显示
  78.  
  79.         }
  80.         else
  81.         {
  82.             //用一个公用方法更好。
  83.             Response.Write("请用管理员身份登录，<span id='span' style=\"color:red;\">3</span> 秒后回到登录页面。<script>var sec=2; setInterval(function (){if(sec<0){window.location='Login.aspx';}else{document.getElementById(\"span\").innerHTML=sec;sec--;}},1000);</script>");
  84.             Response.End();
  85.         }
  86.     }

Web.BAL

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Data.SqlClient;
  4. using System.Linq;
  5. using System.Text;
  6. using System.Threading.Tasks;
  7.  
  8. namespace Web.BAL
  9. {
  10.     public class SQLAction
  11.     {
  12.         private SqlHelper helper = null;
  13.         public SQLAction()
  14.         {
  15.             helper = new SqlHelper();
  16.         }
  17.  
  18.         private Web.Model.Users users = null;
  19.         //重点：
  20.         //      关联表的对象就不能在这里置null了，
  21.         //private Web.Model.Score score = null;
  22.  
  23.         private Dictionary<Web.Model.Users, Web.Model.Score> dUS = null;
  24.         private List<Web.Model.Users> lsUsers = null;
  25.  
  26.         public bool IsExist(string number, string pwd)
  27.         {
  28.             return this.GetUser(number, pwd) != null;
  29.         }
  30.  
  31.         public Web.Model.Users GetUser(string number, string pwd)
  32.         {
  33.             string sql = "select * from tblUsers where  u_Number=@num and u_Pwd=@pwd";
  34.             SqlParameter[] param = { new SqlParameter("@num", number), new SqlParameter("@pwd", pwd) };
  35.             using (SqlDataReader reader = helper.ExecuteDataReader(sql, param))
  36.             {
  37.                 if (reader.HasRows)
  38.                 {
  39.                     while (reader.Read())
  40.                     {
  41.                         users = new Model.Users();
  42.                         users.ID = reader.GetInt32();
  43.                         users.Name = reader.GetString();
  44.                         users.Pwd = reader.GetString();
  45.                         users.Num = reader.GetString();
  46.                         // users.Number = this.GetScore(number);
  47.                         //耗能。
  48.                         //Web.Model.Users.Number = this.GetScore(number);
  49.                         users.sNUM = this.GetScore(number);
  50.                         users.Access = (bool?)reader.GetBoolean();
  51.                         Web.Model.Users.USER = users;
  52.                     }
  53.                 }
  54.             }
  55.             return users;
  56.         }
  57.         private Web.Model.Score GetScore(string number)
  58.         {
  59.              Web.Model.Score score = null;
  60.             string sql = "select * from TblScore where s_Number=@num";
  61.             //此时还能调用reader? 答案：YES
  62.             using (SqlDataReader reader = helper.ExecuteDataReader(sql, new SqlParameter("@num", number)))
  63.             {
  64.                 if (reader.HasRows)
  65.                 {
  66.                     score = new Model.Score();
  67.                     while (reader.Read())
  68.                     {
  69.                         score.ID = reader.GetInt32();
  70.                         score.Number = reader.GetString();
  71.                         score.CSharp = reader.IsDBNull() ? null : (int?)reader.GetInt32();
  72.                         score.SQL = reader.IsDBNull() ? null : (int?)reader.GetInt32();
  73.                         score.ASPNET = reader.IsDBNull() ? null : (int?)reader.GetInt32();
  74.                     }
  75.                 }
  76.             }
  77.             return score;
  78.         }
  79.         /// <summary>
  80.         /// 这个走极端了
  81.         /// </summary>
  82.         /// <returns></returns>
  83.         public Dictionary<Web.Model.Users, Web.Model.Score> GetUsersAndScore()
  84.         {
  85.             string sql = "select * from tblUsers";
  86.             System.Data.DataTable dt = helper.ExecuteDataTable(sql);
  87.             if (dt.Rows.Count > )
  88.             {
  89.                 dUS = new Dictionary<Web.Model.Users, Web.Model.Score>();
  90.                 foreach (System.Data.DataRow item in dt.Rows)
  91.                 {
  92.                     users = new Web.Model.Users();
  93.                     //根据数据库设计这里不判断IsNull了。
  94.                     users.ID = int.Parse(item[].ToString());
  95.                     users.Name = item[].ToString();
  96.                     users.Pwd = item[].ToString();
  97.                     //users.Num = item[3].ToString();
  98.                     //看看item[4]是什么 数字--boolean
  99.                     users.Access = bool.Parse(item[].ToString());
  100.                     //添加value值为null是什么情况？
  101.                     //key相同不相同
  102.                     dUS.Add(users, this.GetScore(item[].ToString()));
  103.                 }
  104.             }
  105.             return dUS;
  106.         }
  107.         // 这样移植性大大降低了。
  108.         // public List<Web.Model.Users> GetUsers(Dictionary<int, Web.Model.Users> dUS)
  109.         public List<Web.Model.Users> GetUsers()
  110.         {
  111.             string sql = "select * from tblUsers";
  112.             System.Data.DataTable dt = helper.ExecuteDataTable(sql);
  113.             if (dt.Rows.Count > )
  114.             {
  115.                 lsUsers = new List<Web.Model.Users>();
  116.                 foreach (System.Data.DataRow item in dt.Rows)
  117.                 {
  118.                     users = new Web.Model.Users();
  119.                     //根据数据库设计这里不判断IsNull了。
  120.                     users.ID = int.Parse(item[].ToString());
  121.                     users.Name = item[].ToString();
  122.                     users.Pwd = item[].ToString();
  123.                     users.Num = item[].ToString();
  124.                     users.sNUM = this.GetScore(item[].ToString());
  125.                     //看看item[4]是什么 数字--boolean:答案布尔
  126.                     users.Access = bool.Parse(item[].ToString());
  127.                     lsUsers.Add(users);
  128.                     //dUS.Add(users.ID, users);
  129.                 }
  130.             }
  131.             return lsUsers;
  132.         }
  133.  
  134.         public int Add(params string[] param)
  135.         {
  136.             //Add(name, pwd, num, access, csharp, sql, aspnet);
  137.             string sqlU = "insert into tblUsers values(@name,@pwd,@num,@access)";
  138.             SqlParameter[] paramU = { new SqlParameter("@name", param.GetValue()), new SqlParameter("@pwd", param[]), new SqlParameter("@num", param.ElementAt()), new SqlParameter("@access", param[]) };
  139.             int tmp = helper.ExecuteNonQuery(sqlU, paramU);
  140.             //
  141.             if (param.Length > )
  142.             {
  143.                 string sqlS = "insert into TblScore values(@num,@csharp,@sql,@aspnet)";
  144.                 SqlParameter[] paramS = { new SqlParameter("@num", param[]), new SqlParameter("@csharp", param[] == "" ? DBNull.Value : (object)param[]), new SqlParameter("@sql", param[] == "" ? DBNull.Value : (object)param[]), new SqlParameter("@aspnet", param[] == "" ? DBNull.Value : (object)param[]) };
  145.                 if (tmp == helper.ExecuteNonQuery(sqlS, paramS))
  146.                     return ;
  147.                 return ;
  148.             }
  149.             return tmp;
  150.         }
  151.         public int Del(string id)
  152.         {
  153.             string sql = "delete from tblUsers where u_ID=@id";
  154.             return helper.ExecuteNonQuery(sql, new SqlParameter("@id", int.Parse(id)));
  155.         }
  156.  
  157.         public int Modify<T>(T obj)
  158.         {
  159.             string sql = string.Empty;
  160.             SqlParameter[] param = null;
  161.             if (obj is Web.Model.Users)
  162.             {
  163.                 bool? acc = (obj as Web.Model.Users).Access;
  164.                 sql = "update  tblUsers set u_Name=@name,u_Pwd=@pwd,u_Number=@num,u_Access=@access where u_ID=@id";
  165.                 param = new SqlParameter[] {
  166.                     new SqlParameter("@name",((Web.Model.Users)Convert.ChangeType(obj,typeof(Web.Model.Users))).Name),
  167.                     new SqlParameter("@pwd",(obj as Web.Model.Users).Pwd),
  168.                     new SqlParameter("@num",(obj as Web.Model.Users).Num),
  169.                     //null 说明：管理员的修改，
  170.                     new SqlParameter("@access",(acc==null?:(acc==false?:))),
  171.                     new SqlParameter("@id",(obj as Web.Model.Users).ID)
  172.                         };
  173.             }
  174.             else
  175.             {
  176.                 sql = "update  tblScore set s_C#=@cs,s_SQL=@sql,s_ASPNET=@aspnet where s_ID=@id";
  177.                 int? cs = (obj as Web.Model.Score).CSharp;
  178.                 int? SQL = (obj as Web.Model.Score).SQL;
  179.                 int? asp = (obj as Web.Model.Score).ASPNET;
  180.                 param = new SqlParameter[] { new SqlParameter("@cs", cs == null ? DBNull.Value : (object)cs) ,
  181.                 new SqlParameter("@sql",SQL==null?DBNull.Value:(object)SQL),
  182.                 new SqlParameter("@aspnet",asp==null?DBNull.Value:(object)asp),
  183.                 new SqlParameter("@id",(obj as Web.Model.Score).ID)};
  184.             }
  185.  
  186.             return helper.ExecuteNonQuery(sql, param);
  187.         }
  188.     }
  189. }

Web.Model

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. using System.Threading.Tasks;
  6.  
  7. namespace Web.Model
  8. {
  9.     public class Users
  10.     {
  11.         public Users()
  12.         {
  13.  
  14.         }
  15.         /// <summary>
  16.         /// 当前登录者
  17.         /// </summary>
  18.         public static Users USER { get; set; }
  19.  
  20.         private int id;
  21.         /// <summary>
  22.         /// ID
  23.         /// </summary>
  24.         public int ID
  25.         {
  26.             get { return id; }
  27.             set { id = value; }
  28.         }
  29.         private string name;
  30.         /// <summary>
  31.         /// Name
  32.         /// </summary>
  33.         public string Name
  34.         {
  35.             get { return name; }
  36.             set { name = value; }
  37.         }
  38.         private string pwd;
  39.         /// <summary>
  40.         /// pwd
  41.         /// </summary>
  42.         public string Pwd
  43.         {
  44.             get { return pwd; }
  45.             set { pwd = value; }
  46.         }
  47.         private string num;
  48.         /// <summary>
  49.         /// number
  50.         /// </summary>
  51.         public string Num
  52.         {
  53.             get { return num; }
  54.             set { num = value; }
  55.         }
  56.  
  57.         //private static Score number;
  58.         ///// <summary>
  59.         ///// 当前登录者Score--number
  60.         ///// </summary>
  61.         //public static Score Number
  62.         //{
  63.         //    get { return number; }
  64.         //    set { number = value; }
  65.         //}
  66.         private Score sNum;
  67.         /// <summary>
  68.         /// Score--Number
  69.         /// </summary>
  70.         public Score sNUM
  71.         {
  72.             get { return sNum; }
  73.             set { sNum = value; }
  74.         }
  75.  
  76.         private bool? access;
  77.         /// <summary>
  78.         /// access
  79.         /// </summary>
  80.         public bool? Access
  81.         {
  82.             get { return access; }
  83.             set { access = value; }
  84.         }
  85.  
  86.     }
  87.     public class Score
  88.     {
  89.         public Score()
  90.         {
  91.  
  92.         }
  93.         private int id;
  94.         /// <summary>
  95.         /// id
  96.         /// </summary>
  97.         public int ID
  98.         {
  99.             get { return id; }
  100.             set { id = value; }
  101.         }
  102.         private string number;
  103.         /// <summary>
  104.         /// number
  105.         /// </summary>
  106.         public string Number
  107.         {
  108.             get { return number; }
  109.             set { number = value; }
  110.         }
  111.         private int? csharp;
  112.         /// <summary>
  113.         /// C#
  114.         /// </summary>
  115.         public int? CSharp
  116.         {
  117.             get { return csharp; }
  118.             set { csharp = value; }
  119.         }
  120.         private int? sql;
  121.         /// <summary>
  122.         /// sql
  123.         /// </summary>
  124.         public int? SQL
  125.         {
  126.             get { return sql; }
  127.             set { sql = value; }
  128.         }
  129.         private int? aspnet;
  130.         /// <summary>
  131.         /// aspnet
  132.         /// </summary>
  133.         public int? ASPNET
  134.         {
  135.             get { return aspnet; }
  136.             set { aspnet = value; }
  137.         }
  138.  
  139.     }
  140. }

项目文件：http://pan.baidu.com/s/1dDf5mlb

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