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js动态给table添加行(tr)

2024-07-20 14:26:10   227人阅读

html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><title> new document </title><meta charset="utf-8"/><meta name="generator" content="editplus"><meta name="author" content=""><meta name="keywords" content=""><meta name="description" content=""></head><body>    <div>        <table width="613" border="0" cellpadding="2" cellspacing="1" id="SignFrame">              <tr id="trHeader">                <td width="27" bgcolor="#96E0E2">序号</td>                <td width="64" bgcolor="#96E0E2">用户姓名</td>                <td width="98" bgcolor="#96E0E2">电子邮箱</td>                <td width="92" bgcolor="#96E0E2">固定电话</td>                <td width="86" bgcolor="#96E0E2">移动手机</td>                <td width="153" bgcolor="#96E0E2">公司名称</td>                <td width="57" align="center" bgcolor="#96E0E2">&nbsp;</td>              </tr>        </table>   </div>   <div>        <input type="button" name="Submit" value="添加参与人" onclick="AddSignRow()" />         <input type="button" name="Submit2" value="清空" onclick="ClearAllSign()" />        <input name=‘txtTRLastIndex‘ type=‘hidden‘ id=‘txtTRLastIndex‘ value="1" />   </div></body></html>

 

javascript
<script language="javascript">// Example: obj = findObj("image1");    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;        }    }            //添加一个参与人填写行    function AddSignRow(){         //读取最后一行的行号，存放在txtTRLastIndex文本框中         var txtTRLastIndex = findObj("txtTRLastIndex",document);        var rowID = parseInt(txtTRLastIndex.value);        var signFrame = findObj("SignFrame",document);        //添加行        var newTR = signFrame.insertRow(signFrame.rows.length);        newTR.id = "SignItem" + rowID;        //添加列:序号        var newNameTD = newTR.insertCell(0);        //添加列内容        newNameTD.innerHTML = newTR.rowIndex.toString();        //添加列:姓名        var newNameTD = newTR.insertCell(1);        //添加列内容        newNameTD.innerHTML = "<input name=‘txtName" + rowID + "‘ id=‘txtName" + rowID + "‘ type=‘text‘ size=‘12‘ />";        //添加列:电子邮箱        var newEmailTD = newTR.insertCell(2);        //添加列内容        newEmailTD.innerHTML = "<input name=‘txtEMail" + rowID + "‘ id=‘txtEmail" + rowID + "‘ type=‘text‘ size=‘20‘ />";        //添加列:电话        var newTelTD = newTR.insertCell(3);        //添加列内容        newTelTD.innerHTML = "<input name=‘txtTel" + rowID + "‘ id=‘txtTel" + rowID + "‘ type=‘text‘ size=‘10‘ />";        //添加列:手机        var newMobileTD = newTR.insertCell(4);        //添加列内容        newMobileTD.innerHTML = "<input name=‘txtMobile" + rowID + "‘ id=‘txtMobile" + rowID + "‘ type=‘text‘ size=‘12‘ />";        //添加列:公司名        var newCompanyTD = newTR.insertCell(5);        //添加列内容        newCompanyTD.innerHTML = "<input name=‘txtCompany" + rowID + "‘ id=‘txtCompany" + rowID + "‘ type=‘text‘ size=‘20‘ />";        //添加列:删除按钮        var newDeleteTD = newTR.insertCell(6);                //添加列内容        newDeleteTD.innerHTML = "<div align=‘center‘ style=‘width:40px‘><a href=‘javascript:;‘ onclick=\"DeleteSignRow(‘SignItem" + rowID + "‘)\">删除</a></div>";        //将行号推进下一行        txtTRLastIndex.value = http://www.mamicode.com/(rowID + 1).toString() ;    }        //删除指定行    function DeleteSignRow(rowid){        var signFrame = findObj("SignFrame",document);        var signItem = findObj(rowid,document);        //获取将要删除的行的Index        var rowIndex = signItem.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();        }    }        //清空列表    function ClearAllSign(){        if(confirm(‘确定要清空所有参与人吗？‘)){            var signFrame = findObj("SignFrame",document);            var rowscount = signFrame.rows.length;            //循环删除行,从最后一行往前删除            for(i=rowscount - 1;i > 0; i--){               signFrame.deleteRow(i);            }            //重置最后行号为1            var txtTRLastIndex = findObj("txtTRLastIndex",document);            txtTRLastIndex.value = "1";            //预添加一行            AddSignRow();        }    }</script>

 

 

js动态给table添加行(tr)


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