js 操作table，添加，删除修改行，checkbox，select应用 -

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2012-08 ( 1)
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js 操作table，添加，删除修改行，checkbox，select应用

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js操作html表格table

JavaScript table html 修改删除行

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"/>
<title>增加Table行</title>
</head>
<script type="text/javascript" language="javascript">//设置文本框全选
function SlectAll(ckAllValue, chkvalue) {
    var ckallObj = document.getElementsByName(ckAllValue);//获取全选项框的obj
    var chkObj = document.getElementsByName(chkvalue); //获取要改变的obj
    for (var i = 0; i < chkObj.length; i++) {
        chkObj[i].checked = ckallObj[0].checked;
    }
}
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 codevalue=["a","b"];
var namevalue=["c","d"];
var signFrame = findObj("SignFrame", document);
//添加行
var newTR = signFrame.insertRow(signFrame.rows.length);
newTR.id = "SignItem" + rowID;
//添加选者框
var newCkTD=newTR.insertCell(0);
newCkTD.style.width="25px";
newCkTD.innerHTML = "<input id='chk_" + rowID + "' name='chk1' type='checkbox' value='"+rowID+"'/>";
//添加列:序号
//var newNameTD = newTR.insertCell(1);
// newNameTD.style.width="25px";
//添加列内容
// newNameTD.innerHTML =(newTR.rowIndex+1).toString();

//添加列:空港代码
var newNameTD = newTR.insertCell(1);
newNameTD.style.width="100px";
//添加列内容
newNameTD.innerHTML = "<select name='SelCode" + rowID + "' id='SelCode" + rowID + "' ><option value='XYZ'>XYZ</option></select>";
for(var i=0;i<codevalue.length;i++) //添加选择项
{
document.getElementById("SelCode"+rowID).options.add(new Option(codevalue[i],codevalue[i]));
}
document.getElementById("SelCode"+rowID).value="a";
//添加列:空港名称
var newEmailTD = newTR.insertCell(2);
newEmailTD.style.width="100px";
//添加列内容
newEmailTD.innerHTML = "<select name='SelName" + rowID + "' id='SelName" + rowID + "'><option value='dd'>dd</option></select>";
    for(var i=0;i<namevalue.length;i++) //添加选择项
{
document.getElementById("SelName"+rowID).options.add(new Option(namevalue[i],namevalue[i]));
}
document.getElementById("SelName"+rowID).value="c";
//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 = 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+1; i < signFrame.rows.length; i++) {
// signFrame.rows[i].cells[1].innerHTML = i.toString();
// } -->
} //清空列表
function ClearAllSign() {
if (confirm('确定要删除选中的数据吗？')) {
var arrstr=new Array();
var signFrame = findObj("SignFrame", document);
var rowscount = signFrame.rows.length;
var chkvalue=document.getElementsByName("chk1"); //获取选中的行
//循环删除行,从最后一行往前删除
var j =0;//记录是否选择数据
for (i = rowscount -1; i >= 0; i--) {
if(chkvalue[i].checked)//将用户选择的checkbox的值存入数组
{
arrstr.push(chkvalue[i].value);
}
}
for(var i=0;i<arrstr.length;i++)//删除用户选择的记录
{
   DeleteSignRow(arrstr[i]);
}
chkvalue=document.getElementsByName("chk1");
for(var i=0;i<chkvalue.length;i++)
{
chkvalue[i].checked=false;
}

//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 style="height:20px;width:225px;">
<table border="1" cellpadding="2" cellspacing="0" id="la" style="width:228px;height:100%;font-size:12px;border-collapse:collapse">
<tr id="tr1">
<td bgcolor="#96E0E2" style="width: 25px"><input type="checkbox" name="chkbvalue1"onclick="SlectAll('chkbvalue1','chk1')"></td>
<td bgcolor="#96E0E2" style="width: 100px">空港代码</td>
<td bgcolor="#96E0E2" style="width: 100px">空港名称</td>
</tr>
   </table>
</div>
<div style="overflow:scroll;height:200px;width:225px">
<table border="0" cellpadding="2" cellspacing="1" id="blotue" style="width:100%;font-size:12px">
<tr>
<td>

</td>
</tr>
<tr>
<td>
<table border="0" cellpadding="2" cellspacing="1" id="SignFrame" style="width: 100%">
</table>
</td>
</tr>
</table>
</div>
<div>
<input type="button" name="Submit" value="增加" onclick="AddSignRow()" />
<input type="button" name="Submit2" value="删除" onclick="ClearAllSign()" />
<input name='txtTRLastIndex' type='hidden' id='txtTRLastIndex' value="1"/>
</div>

</body>
</html>