JS动态添加行列

浏览数：42 / 时间：2015年06月09日

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Add-Delete Row.aspx.cs" Inherits="Add_Delete_Row" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <style type="text/css">
        #Add{ margin:0px auto;}
        #tab{ border-collapse:collapse; text-align:center; margin:0 auto;}
        #tab td{ border:1px solid #000000;}
        #tr1{ font-family:@华文仿宋; color:Red;}
    </style>
    <script type="text/javascript">
        function findObj(theObj, theDoc) {
            var p, i, foundObj;
            if (!theDoc) theDoc = document;
            if ((p = theObj.indexOf("?")) > 0 && parent.frames.length)
            { theDoc = parent.frames[theObj.substring(p + 1)].document; theObj = theObj.substring(0, p); } if (!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj]; for (i = 0; !foundObj && i < theDoc.forms.length; i++) foundObj = theDoc.forms[i][theObj]; for (i = 0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++) foundObj = findObj(theObj, theDoc.layers[i].document); if (!foundObj && document.getElementById) foundObj = document.getElementById(theObj); return foundObj;
        }
        function addRow() {
            //读取添加一行的行号，存放在txtIndex文本框中 
            var txtIndex = findObj("txtIndex", document);
            var rowID = parseInt(txtIndex.value);
            //alert(rowID);
            //添加一行
            var signFrame = findObj("tab", document);
            //添加行
            var newTR = signFrame.insertRow(signFrame.rows.length);
            newTR.id = "SignItem" + rowID; //添加行数的ID
           
            //添加列
            var NewTd1 = newTR.insertCell(0);
            NewTd1.style.width = 200;
            var NewTd2 = newTR.insertCell(1); 
            NewTd2.style.width = 190;
            var NewTd3 = newTR.insertCell(2);
            NewTd3.style.width = 210;
            var NewTd4 = newTR.insertCell(3);
            NewTd4.style.width = 40;
            //设置列的内容及属性
            NewTd1.innerHTML = "<input type = ‘text‘ style = ‘ width:170px; text-align:center; border:0px;‘ id = ‘txt " + rowID + "‘ />";
            NewTd2.innerHTML = "<input type = ‘text‘ style = ‘ width:160px; text-align:center; border:0px;‘ id = ‘txt " + rowID + "‘ />";
            NewTd3.innerHTML = "<input type = ‘text‘ style = ‘ width:170px; text-align:center; border:0px;‘ id = ‘txt " + rowID + "‘ />";
            NewTd4.innerHTML = "<a style = ‘ text-decoration:none;‘ href = ‘#‘ onclick = \"DeleteSignRow(‘SignItem" + rowID + "‘)\">删除</a>";            
            //将行号推进到下一行
            txtIndex.value = (rowID + 1).toString();
        }
        //删除指定行
        function DeleteSignRow(rowid) {
            var signFrame = findObj("tab", document);
            var signItem = findObj(rowid, document);

            //获取将要删除的行的Index
            var rowIndex = signItem.rowIndex;
            //alert(rowIndex);
            //删除指定Index的行
            signFrame.deleteRow(rowIndex);

            //重新排列序号，如果没有序号，这一步省略
//            for (i = rowIndex; i < signFrame.rows.length; i++) {
//                signFrame.rows[i].cells[0].innerHTML = i.toString();
//            }
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div style = " width:640px; margin:0 auto;" id = "dv">
    <input type="button" id="Add" value="添加一行" onclick = "addRow()" />
        <input name=‘txtIndex‘ type=‘hidden‘ id=‘txtIndex‘ value="4" />
    <br />
    </div>
    <table width = "640" cellpadding="0" cellspacing="0" id = "tab">
        <tr>
            <td>
                姓名
            </td>
            <td colspan = "3">
                
            </td>
        </tr>
        <tr id = "tr1">
            <td style = " width:200px;">姓名</td>
            <td style = " width:190px">邮箱</td>
            <td style = " width:210px">投标内容</td>
            <td style = " width:40px"></td>
        </tr>
        <tr>
            <td>性别</td>
            <td colspan = "3">
                
            </td>
        </tr>
    </table>
    </form>
</body>
</html>