JS动态添加行列

<%@ 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: auto;}

        #tab td{ border:1px solid #;}

        #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("?")) >  && parent.frames.length)

            { theDoc = parent.frames[theObj.substring(p + )].document; theObj = theObj.substring(, p); } if (!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj]; for (i = ; !foundObj && i < theDoc.forms.length; i++) foundObj = theDoc.forms[i][theObj]; for (i = ; !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();

            NewTd1.style.width = ;

            var NewTd2 = newTR.insertCell();

            NewTd2.style.width = ;

            var NewTd3 = newTR.insertCell();

            NewTd3.style.width = ;

            var NewTd4 = newTR.insertCell();

            NewTd4.style.width = ;

            //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 + ).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="" />

    <br />

    </div>

    <table width = "" cellpadding="" cellspacing="" id = "tab">

        <tr>

            <td>

                姓名

            </td>

            <td colspan = "">

            </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 = "">

            </td>

        </tr>

    </table>

    </form>

</body>

</html>
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