JS动态添加删除HTML元素
JS技术 2010-01-27 17:41:31 阅读449 评论0 字号:大中小
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>增加Table行</title>
</head>
<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);
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>增加Table行</title>
</head>
<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 && ElementById) foundObj = ElementById(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);
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 && ElementById) foundObj = ElementById(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.ws.length);
newTR.id = "SignItem" + rowID;
//添加列:序号
var newNameTD=newTR.insertCell(0);
//添加列内容
newNameTD.innerHTML = String();
//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' />";
var newTR = signFrame.ws.length);
newTR.id = "SignItem" + rowID;
//添加列:序号
var newNameTD=newTR.insertCell(0);
//添加列内容
newNameTD.innerHTML = String();
//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:
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:删除按钮
var newDeleteTD=newTR.insertCell(3);
//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 = (rowID + 1).toString() ;
}
/
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:删除按钮
var newDeleteTD=newTR.insertCell(3);
//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 = (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 = wIndex;
//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&ws.length;i++){
ws[i].cells[0].innerHTML = i.toString();
}
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 = wIndex;
//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&ws.length;i++){
ws[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 = ws.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";
function ClearAllSign(){
if(confirm('确定要清空所有参与人吗?')){
var signFrame = findObj("SignFrame",document);
var rowscount = ws.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>
<body>
<div>
<table width="613" border="0" cellpadding="2" cellspacing="1" id="SignFrame">
<tr id="trHeader">
<td width="27" bgcolor="#96E0E2">序号html frame</td>
<td width="64" bgcolor="#96E0E2">用户姓名</td>
<td width="98" bgcolor="#96E0E2"></td>
<td width="57" align="center" bgcolor="#96E0E2"> </td>
</tr>
</table>
AddSignRow();
}
}
</script>
<body>
<div>
<table width="613" border="0" cellpadding="2" cellspacing="1" id="SignFrame">
<tr id="trHeader">
<td width="27" bgcolor="#96E0E2">序号html frame</td>
<td width="64" bgcolor="#96E0E2">用户姓名</td>
<td width="98" bgcolor="#96E0E2"></td>
<td width="57" align="center" bgcolor="#96E0E2"> </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>
=======================================================================
实例二
<html xmlns="/1999/xhtml">
<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>
=======================================================================
实例二
<html xmlns="/1999/xhtml">
<head>
<title>JavaScript实现动态删除节点代码</title>
<div id="test1">
<p id="x1">AAAAAAAAAAAAAAAA</p>
<p>BBBBBBBBBBBBBBB</p>
</div>
<hr>
<div id="test2">
<p id="x1">CCCCCCCCCCC</p>
<p>DDDDDDDDDDDD</p>
</div>
<hr>
<div id="test3">
<p id="x1">EEEEEEEEEEE</p>
<p>FFFFFFFFFFFFFFF</p>
<title>JavaScript实现动态删除节点代码</title>
<div id="test1">
<p id="x1">AAAAAAAAAAAAAAAA</p>
<p>BBBBBBBBBBBBBBB</p>
</div>
<hr>
<div id="test2">
<p id="x1">CCCCCCCCCCC</p>
<p>DDDDDDDDDDDD</p>
</div>
<hr>
<div id="test3">
<p id="x1">EEEEEEEEEEE</p>
<p>FFFFFFFFFFFFFFF</p>
</div>
<input type="button" value="test1" onClick="aa('test1')"><input type="button" value="DEL_test1" onClick="removeElement('test1')">
<input type="button" value="test2" onClick="bb('test2')">
<input type="button" value="test3" onClick="cc('test3')">
<script type="text/javascript">
//oTest newNode这两个变量如果在函数里边,则追加节点,
var oTest = ElementById("test2");
var newNode = ateElement("p");
//appendChild() 方法在节点的子节点列表末添加新的子节点。
//insertBefore() 方法在节点的子节点列表任意位置插入新的节点。
//nextSibling 属性可返回某个元素之后紧跟的元素(处于同一树层级中)。
function aa(id){
var oTest = ElementById(id);
<input type="button" value="test1" onClick="aa('test1')"><input type="button" value="DEL_test1" onClick="removeElement('test1')">
<input type="button" value="test2" onClick="bb('test2')">
<input type="button" value="test3" onClick="cc('test3')">
<script type="text/javascript">
//oTest newNode这两个变量如果在函数里边,则追加节点,
var oTest = ElementById("test2");
var newNode = ateElement("p");
//appendChild() 方法在节点的子节点列表末添加新的子节点。
//insertBefore() 方法在节点的子节点列表任意位置插入新的节点。
//nextSibling 属性可返回某个元素之后紧跟的元素(处于同一树层级中)。
function aa(id){
var oTest = ElementById(id);
var newNode = ateElement("p");
newNode.innerHTML =Date();
oTest.appendChild(newNode);
}
function bb(id){
newNode.innerHTML =Date();
oTest.insertBefore(newNode,null);
}
function cc(id){
var oTest = ElementById(id);
var newNode = ateElement("p");
newNode.innerHTML =Date();
insertAfter(newNode,oTest);
}
newNode.innerHTML =Date();
oTest.appendChild(newNode);
}
function bb(id){
newNode.innerHTML =Date();
oTest.insertBefore(newNode,null);
}
function cc(id){
var oTest = ElementById(id);
var newNode = ateElement("p");
newNode.innerHTML =Date();
insertAfter(newNode,oTest);
}
function insertAfter(newElement, targetElement) {
var parent = targetElement.parentNode;
if (parent.lastChild == targetElement) {
// 如果最后的节点是目标元素,则直接添加。因为默认是最后
parent.appendChild(newElement);
} else {
parent.insertBefore(Sibling);
//如果不是,则插入在目标元素的下一个兄弟节点 的前面。也就是目标元素的后面。
}
}
//删除某ID元素
function removeElement(id){
ElementById(id);
veChild(obj);
}
</script>
</body>
</html>
veChild(obj);
}
</script>
</body>
</html>
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