JS验证格式：提高用户体验，验证文本。
需要防止程序员的代码结构更改攻击，因为web段的代码有可能会被更改，更改后JS有可能会验证不住
那么，C#端在JS段通过验证的情况下，还需要进行二次验证
<body><form id="form1" runat="server"><asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><asp:Label ID="Label1" runat="server" Text="Label"></asp:Label><asp:Button ID="Button1" runat="server" Text="Button" /></form> </body>
<script type="text/javascript">window.onload = function () {//文档加载完成之后就会触发该事件document.getElementById("Button1").onclick = function () {//1、将文本框的值取出来看看var txt1 = document.getElementById("TextBox1").value;//如果空，那么提示不能为空，并且阻止提交if (/^(13[0-9]|14[0-9]|15[0-9]|18[0-9])\d{8}$/.test(txt1) == false || txt1.length !=11) {//可以网上搜集document.getElementById("Label1").innerHTML = "手机号码格式有误！";return false;//阻止提交的}//如果不为空，那么就直接提交 };};</script>
邮箱：
<body><form id="form1" runat="server"><asp:Repeater ID="Repeater1" runat="server"><HeaderTemplate><table id="tb1"><tr id="tr_head"><td><input type="checkbox" id="ck_all" /><label for="ck_all">全选</label></td><td>用户名</td><td>密码</td><td>昵称</td><td>性别</td><td>生日</td><td>民族</td></tr></HeaderTemplate><ItemTemplate><tr class="tr_item"><td><input type="checkbox" class="ck" name="ckk" value="<%#Eval("UserName") %>" /></td><td><%#Eval("UserName") %></td><td><%#Eval("PassWord") %></td><td><%#Eval("NickName") %></td><td><%#Eval("SexStr") %></td><td><%#Eval("BirthdayStr") %></td><td><%#Eval("NationName") %></td></tr></ItemTemplate><FooterTemplate></table></FooterTemplate></asp:Repeater><asp:Button ID="Button1" runat="server" Text="Button" /><asp:Label ID="Label1" runat="server" Text="Label"></asp:Label></form> </body>
<title></title><style type="text/css">#tb1 {width:100%;background-color:#ff6a00;text-align:center;}#tr_head {color:white;}.tr_item {background-color:#ffd800;}</style><script type="text/javascript">window.onload = function () { /*点击全选 把所有的ck全部选出，for循环遍历*/document.getElementById("ck_all").onclick = function () {var oCks = document.getElementsByClassName("ck");for (var i = 0; i < oCks.length; i++){oCks[i].checked = this.checked;}};/*点击所有的之后，全选也自动选择。先取每一个的点击事件*/var ckk = document.getElementsByClassName("ck");for (var i = 0; i < ckk.length; i++){ckk[i].onclick = function () {var ok = 0;/*默认是0,每点击一下循环全部的ckk*/for (var j = 0; j < ckk.length; j++){if (ckk[j].checked == true)/*每点击一下把选中的取出*/{ok++;}}if (ok == ckk.length) {/*所有ckk的个数和选中的匹配，ck_all选中*/document.getElementById("ck_all").checked = true;}else {document.getElementById("ck_all").checked = false;}};}};</script></head> <body><form id="form1" runat="server"><asp:Repeater ID="Repeater1" runat="server"><HeaderTemplate><table id="tb1"><tr id="tr_head"><td><input type="checkbox"id="ck_all" /><label for="ck_all">全选</label></td><td>用户名</td> <td>密码</td> <td>昵称</td> <td>性别</td> <td>生日</td> <td>民族</td> </tr></HeaderTemplate><ItemTemplate><tr class="tr_item"><td><input type="checkbox" class="ck" name="ckk" value="<%#Eval("UserName") %>" /> </td><td><%#Eval("UserName") %></td><td><%#Eval("PassWord") %></td><td><%#Eval("NickName") %></td><td><%#Eval("Ssex") %></td><td><%#Eval("Birthday2") %></td><td><%#Eval("Nation") %></td></tr></ItemTemplate><FooterTemplate></table></FooterTemplate></asp:Repeater><asp:Button ID="Button1" runat="server" Text="Button" /><asp:Label ID="Label1" runat="server" Text="Label"></asp:Label></form> </body>
protected void Page_Load(object sender, EventArgs e){if (!IsPostBack){Repeater1.DataSource = new UsersDA().Select();Repeater1.DataBind();}Button1.Click += Button1_Click;}void Button1_Click(object sender, EventArgs e){Label1.Text = Request["ckk"].ToString();//点击按钮取出主键值。string[] unames = Request["ckk"].ToString().Split(',');//分隔foreach (string s in unames)//遍历所选的{new UsersDA().Delete(s);}Repeater1.DataSource = new UsersDA().Select();Repeater1.DataBind();//删完再重新绑定}
