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作者 | 正文 |
发表时间:2009-04-11
最后修改:2010-01-01
动态增删改Table表格 //全选反选 function checkAll(boxName) { var checkBox = document.getElementsByName(boxName); for (i = 0; i < checkBox.length; i++) { var checked = checkBox[i].checked; if (checked) { checkBox[i].checked = false; } else { checkBox[i].checked = true; } } } //多选验证 function multiCheck(idArray) { //var idArray = document.getElementsByName(boxName); var count = 0; for(i=0;i<idArray.length;i++) { if(idArray[i].checked) { count++; } } return count; } //回车切换焦点 function toNext(next) { if(event.keyCode==13) { next.focus(); } } //打开右键菜单 function openShortCutMenu(oRow) { // 选中当前行 SelectRow(oRow); aOpenPopMenu("ShortCutMenu"); event.cancelBubble = true; event.returnValue = false; } //关闭右键菜单 function CloseShortCutMenu(){ aClosePopMenu("ShortCutMenu"); } //显示右键菜单 function aOpenPopMenu(MenuId){ if (document.all(MenuId)){ document.all(MenuId).style.left = event.clientX + document.body.scrollLeft; document.all(MenuId).style.top = event.clientY + document.body.scrollTop; document.all(MenuId).style.display = ""; } } //隐藏右键菜单 function aClosePopMenu(MenuId){ if (document.all(MenuId)){ document.all(MenuId).style.display = "none"; } } 学生信息管理主页studentInfo.html <html> <head> <title>学生信息</title> <script type="text/javascript" src="util.js"></script> <script> //显示更新学生信息模态窗体 function showDialog() { var result = window.showModalDialog("dialog.html",null,"dialogWidth=400px;dialogHeight=400px;"); if(result&&result.length!=0&&result[0]!="") { addRow(result); } } //添加一行学生信息 function addRow(result) { var doc = window.listFrame.document;//内嵌框架的document对象 var tb = doc.getElementById("stuTable");//学生信息表格 var tbody = doc.getElementById("mytbody"); //创建新的行 var tr = doc.createElement("<tr onClick='SelectRow(this)' ondblclick='update();' oncontextmenu='openShortCutMenu(this)' title='右键修改'>"); //创建行的第一个单元格中的多选框 var check = document.createElement("<input name='idArray' type='checkbox'>"); var td = document.createElement("td"); td.appendChild(check); tr.appendChild(td); //将模式窗体传过来的值添加到新行中 for(i=0;i<result.length;i++) { var td = document.createElement("td"); td.appendChild(document.createTextNode(result[i])); tr.appendChild(td); } tbody.appendChild(tr); } //删除学生信息 function delStudent() { var checks = window.listFrame.document.getElementsByName("idArray"); var count = multiCheck(checks); if(count==0) {alert("未选中任何选项!"); return;} if(window.confirm("确定要删除这"+count+"条信息吗?")) { while(count>0) { var tb = window.listFrame.document.getElementById("stuTable"); var checks = window.listFrame.document.getElementsByName("idArray"); for(i=0;i<checks.length;i++) { if(checks[i].checked) { tb.deleteRow(checks[i].parentElement.parentElement.rowIndex); count--; break; } } } } } //修改学生信息 function update() { var CurrRow = window.listFrame.CurrRow; if(CurrRow&&CurrRow.cells.length>0) { var values = new Array(); for(i=0;i<CurrRow.cells.length-1;i++) { values[i] = CurrRow.cells[i+1].innerText; } values[values.length] = CurrRow;//将修改的当前行传给模式窗体进行修改 var result = window.showModalDialog("dialog.html",values,"dialogWidth=400px;dialogHeight=400px;"); }else { alert("请选中要修改的行"); } } </script> </head> <body bgcolor="#FFFFFF" text="#000000" onselectstart="return false;"> <table border="0" cellpadding="0" cellspacing="0" width="100%" height="95%"> <tr> <td width="100%" height="100%" valign="top"> <IFRAME width="100%" id="listFrame" height="100%" border=0 frameBorder=1 name="listFrame" src="list.html"></IFRAME> </td> </tr> <tr> <td width="100%" align="center" colspan="2"> <input class="btn_70" type="button" value="刷 新" id="btRefresh" onclick="listFrame.location.reload();">    <input class="btn_70" type="button" value="删 除" id="btDel" onclick="delStudent();">    <input class="btn_70" type="button" value="添 加" id="btAdd" onclick="showDialog();">    <input type="button" Class="btn_70" value="修 改" name="btModify" onclick="update();">    </td> </tr> </table> </body> </html> 学生信息列表页面(list.html),此页面内嵌在studentInfo.html中 <html> <head> <title>学生信息列表</title> <script type="text/javascript" src="util.js"></script> <script> // 当前行对象变量 var CurrRow = null; // 选定表格行函数 function SelectRow(row) { // 如果有曾选定过的行, 则恢复此行为未选定状态 if(CurrRow) { CurrRow.style.backgroundColor=""; } // 设置新的选定行的状态 row.style.backgroundColor = '#D9F5FF'; // 前新的行赋给 当前行变量 CurrRow = row; } //更新学生信息 function update() { var values = new Array(); for(i=0;i<CurrRow.cells.length-1;i++) { values[i] = CurrRow.cells[i+1].innerText; } values[values.length] = CurrRow;//将修改的当前行传给模式窗体进行修改 var result = window.showModalDialog("dialog.html",values,"dialogWidth=400px;dialogHeight=400px;"); } </script> </head> <body onmousedown="CloseShortCutMenu()"> <table border="1" width="100%" bordercolor="#666666" cellspacing="0" id="stuTable" style="border-collapse: collapse" cellpadding="2" align="center"> <caption>07级学生信息列表</caption> <tbody id="mytbody"> <tr class="th"> <td><input type="checkbox" onclick="checkAll('idArray');">[全选/反选]</td> <td>学号</td> <td>姓名</td> <td>性别</td> <td>年龄</td> <td>学校</td> <td>手机</td> </tr> <tr onClick="SelectRow(this)" ondblclick="update();" oncontextmenu="openShortCutMenu(this)" title="右键修改"> <td><input name="idArray" type="checkbox"></td> <td>430901</td> <td>hackiller</td> <td>男</td> <td>21</td> <td>中南林业科技大学涉外学院</td> <td>12345678901</td> </tr> </tbody> </table> <div id="ShortCutMenu" style="position: absolute; left: -200px; top: -200px; width: 120px; z-index: 999; display: none"> <table border="0" width="120" style="border-collapse: collapse; border: 2 outset #AEA67C" cellspacing="0" cellpadding="4" bgcolor="#EBF5FF"> <tr style="cursor: default" onmouseover="this.bgColor='#ADCFFF'" onmouseout="this.bgColor=''" onmousedown="update();"> <td width="90">修改</td> </tr> </table> </div> </body> </html> 更新学生信息对话框页面(dialog.html),用于添加和修改表格 <html> <head> <title>更新学生信息</title> <script type="text/javascript" src="util.js"></script> <script> var arg = window.dialogArguments; function updateInfo() { var stuValues = getStuValues(); if(!arg) { window.returnValue = stuValues; }else { for(i=0;i<stuValues.length;i++) { arg[arg.length-1].cells[i+1].innerText=stuValues[i]; } } window.close(); } //取消更新 function cancle() { window.close(); } //初始化 function init() { if(arg) { setStuValues(arg); } } //获取学生信息 function getStuValues() { var tb = document.getElementById("stuInfoTb"); var stuValues = new Array(6); for(i=0;i<6;i++) { //获取表格中每一行第2个单元格中的元素的值,即学生信息 stuValues[i] = tb.rows[i].cells[1].children[0].value; } var female = tb.rows[2].cells[1].children[1]; if(female.checked) stuValues[2]='女'; else stuValues[2]='男'; return stuValues; } //设置学生信息初始值 function setStuValues(stuValues) { var tb = document.getElementById("stuInfoTb"); for(i=0;i<6;i++) { //获取表格中每一行第2个单元格中的元素的值,即学生信息 var elem = tb.rows[i].cells[1].children[0]; elem.value = stuValues[i]; } var female = tb.rows[2].cells[1].children[1]; if(stuValues[2]=='女') female.checked=true; } </script> </head> <body> <table align="center" style="margin-top: 10%;" id="stuInfoTb"> <tr> <td>学号</td> <td><input type="text" id="stuID" name="stuID" onkeypress="toNext(stuName);"></td> </tr> <tr> <td>姓名</td> <td><input type="text" id="stuName" name="stuName" maxlength="20" onkeypress="toNext(stuAge);"></td> </tr> <tr> <td>性别</td> <td> <input type="radio" id="male" name="stuSex" value="男" checked="checked">男 <input type="radio" id="female" name="stuSex" value="女">女 </td> </tr> <tr> <td>年龄</td> <td><input type="text" id="stuAge" name="stuAge" maxlength="2" onkeypress="toNext(stuSchool);" onkeyup="this.value=this.value.replace(/\D/g,'');"> </td> </tr> <tr> <td>学校</td> <td><input type="text" id="stuSchool" name="stuSchool" maxlength="50" onkeypress="toNext(stuMobile);"></td> </tr> <tr> <td>手机</td> <td><input type="text" id="stuMobile" name="stuMobile" maxlength="50" onkeypress="if(event.keyCode==13) updateInfo();"></td> </tr> <tr align="center"><td colspan="2"> <input type="button" class="btn_70" value="确定" onclick="updateInfo();"> <input type="button" class="btn_70" value="取消" onclick="cancle();"> </td></tr> </table> <script>init();</script> </body> </html> 二、在学习和做项目过程中写的JavaScript验证函数(正则表达式) //身份证合法性 function isIdentity(new_num) { var num = new_num; var len = num.length ; var re ; if (len == 15) { if (isNaN(num)) {alert("输入的不是数字!"); return false;} } if (len == 15) re = new RegExp(/^(\d{6})()?(\d{2})(\d{2})(\d{2})(\d{3})$/); else if (len == 18) re = new RegExp(/^(\d{6})()?(\d{4})(\d{2})(\d{2})(\d{3})(\d|[X])$/); else { alert("输入的数字位数不对!"); return false;} var a = num.match(re); if (a != null) { if (len==15) { var D = new Date("19"+a[3]+"/"+a[4]+"/"+a[5]); var B = D.getYear()==a[3]&&(D.getMonth()+1)==a[4]&&D.getDate()==a[5]; } else { var D = new Date(a[3]+"/"+a[4]+"/"+a[5]); var B = D.getFullYear()==a[3]&&(D.getMonth()+1)==a[4]&&D.getDate()==a[5]; } if (!B) {alert("输入的身份证号 "+ a[0] +" 里出生日期不对!"); return false;} }else { alert("输入的身份证号不对!"); return false; } return true; } //电子邮箱的合法性 function checkemail(email) { var myReg = /^([-_A-Za-z0-9\.]+)@([_A-Za-z0-9]+\.)+[A-Za-z0-9]{2,3}$/; if(!myReg.test( email )) { alert("请输入合法的电子邮件地址"); return false; } return true; } //验证邮政编码 function checkPostcode(postcode) { var reobj = new RegExp(/^\d+$/); if(!reobj.test(postcode)||!postcode.length!=6) { alert("请输入正确的邮政编码"); return false; } return true; } //价格验证 function checkPrice(price) { var float = /^\d+(.){0,1}?\d{0,2}$/;//两位小数 var int = /^[1-9]\d*$/;//正整数 if(!float.test(price)&&!int.test(price)) { alert("请输入正确的商品价格"); return false; } return true; } //验证上传图片类型 function valiImgType(fileName) { var extension = fileName.substring(fileName.lastIndexOf(".")+1,fileName.length).toLowerCase(); if(extension!="jpg"&&extension!="gif") { alert("请选择jpg或gif格式的图片"); return false; } return true; } //验证是否为中文 function iszhCN(name) { var Expression=/[^\u4E00-\u9FA5]/; var objExp=new RegExp(Expression); if(!/^[\u4e00-\u9fa5]+$/.test(name)) { alert("请输入汉字,验证未通过"); return false; } return true; } //验证IP地址 function checkIP(sIPAddress) { var exp=/^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$/; var reg = sIPAddress.match(exp); var ErrMsg="你输入的是一个非法的IP地址段!\nIP段为::xxx.xxx.xxx.xxx(xxx为0-255)!" if(reg==null) { alert(ErrMsg); return false; } return true; } 三、在学习和做项目过程中写的常用JavaScript函数 //四舍五入,保留valiNumber个小数; function round(number,valiNumber) { document.write(number.toFixed(valiNumber)); } // 判断字符串长度,一个中文按两个字符算 function strlen(str) { var len; var i; len = 0; for (i=0;i<str.length;i++) { if (str.charCodeAt(i)>255) len+=2; else len++; } return len; } 四、用JavaScript限制html输入框为整数 <!-- 第一种 --> <input onkeypress="return event.keyCode>=48&&event.keyCode<=57" onpaste="var s=clipboardData.getData('text'); if(!/\D/.test(s)) value=s.replace(/^0*/,'');return false;" onkeyup="if(/(^0+)/.test(value))value=value.replace(/^0*/, '')" /> <!-- 第二种 --> <input type="text" onkeyup="this.value=this.value.replace(/\D/g,'');">
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