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分享求助，如何验证动态tr里的input值是否为空？
我有一个可动态添加的<tr>里面有一个文本框,如果我要在submit的时候，验证这个tr中的input的值是否为空时，怎么定位，请问这个怎么实现,关键是因为动态增减的TR,我不知道怎么定位
另，如果动态添加的tr到了下一页后，再返回时，能不能保留原有的行数和值？
另，如果动态添加的tr到了下一页后，再返回时，能不能保留原有的行数和值？
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lingy 2004-10-25
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谢谢
JK_10000 2004-10-22
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>JK:支持民族工业,尽量少买X货</title>
<style>
TD,INPUT{ font-size:12; }
</style>
</head>
<body bgcolor=EEEEEE>
<form name="frm" action="about:结果页面" method=post >
<h4 align=center>JK的动态明细示例</h4>
<table align="center" bordercolor=cccccc border=1 width=100% >
<tr>
<td width=500>
</td>
<td align=right>
<input type="button" value="增加" class="bottom" onclick="addDetailProcess();">
<input type="button" value="删除" class="bottom" onclick="delDetailProcess();">
<input type="button" value="完成" class="bottom" onclick="submitProcess();">
</td>
</tr>
</table>
<div width=100% id=thedetailtableDIV>
<table align="center" bordercolor=cccccc border=1 width=100% >
<tbody id="tbDetailPrepare">
<tr>
<td ><input type="checkbox" name="record_select" ></td>
<td ><input type="text" name="detail_id" value='' ></td>
<td ><input type="text" name="detail_name" value='' ></td>
</tr>
</tbody>
<tr bgcolor=eeeeee id="trDetailTitles">
<td ><input type=checkbox onclick="selectallcheckbox(this)"></td>
<td >明细ID*</td>
<td >明细NAME</td>
</tr>
<tbody id="tbDetailUsed" >
<tr>
<td ><input type="checkbox" name="record_select" ></td>
<td ><input type="text" name="detail_id" value='' ></td>
<td ><input type="text" name="detail_name" value='' ></td>
</tr>
<tr height=0 ><td colspan=100 height=0 > 合计</td></tr>
</tbody>
</table>
</div>
</form>
<input name="theHistoryRecord" type=hidden value="">
</body>
</html>
<script language=javascript>
window.onload = historyOncemore;
window.onbeforeunload = fixHistory;
function fixHistory() //记住历史
{
document.all("theHistoryRecord").value=document.all("thedetailtableDIV").innerHTML.replace(/\n/g,"");
}
function historyOncemore() //恢复历史
{
if (document.all("theHistoryRecord").value!="")
{document.all("thedetailtableDIV").innerHTML=document.all("theHistoryRecord").value;
}
}
function selectallcheckbox(obj) //全选或全不选
{
var tureorfalse=obj.checked;
var theDetail=tbDetailUsed.rows;
for(var i=0;i<theDetail.length-1;i++)
{
theDetail[i].all("record_select").checked=tureorfalse;
}
}
function addDetailProcess(afterRowIndex) //增加明细
{
var alltbDetailUsed= document.all("tbDetailUsed").rows;
var theFirstSelectedDetail;
if (afterRowIndex==null)
{
for(var i=0;i<alltbDetailUsed.length-1;i++)
{
if (alltbDetailUsed[i].all("record_select").checked==true) {theFirstSelectedDetail=i;break;}
}
if (theFirstSelectedDetail==null) {theFirstSelectedDetail=alltbDetailUsed.length-2;}
}
else theFirstSelectedDetail=afterRowIndex;
var newRow = document.all("tbDetailPrepare").rows[0].cloneNode(true);
var desRow = alltbDetailUsed[theFirstSelectedDetail+1];
desRow.parentElement.insertBefore(newRow,desRow );
}
function delDetailProcess() //删除明细
{
var alltbDetailUsed= document.all("tbDetailUsed").rows;
if (confirm("确定选择正确并且要将这些明细删除")==false) return false;
for(var i=0;i<alltbDetailUsed.length-1;i++)
{
if (alltbDetailUsed[i].all("record_select").checked==true)
{
document.all("tbDetailUsed").deleteRow(i);
i=i-1;
}
}
}
function submitProcess()
{
var detailIdObjs=document.getElementsByName("detail_id");
for(var i=1;i<detailIdObjs.length;i++)
{
if(detailIdObjs[i].value=="")
{
alert("Please input!");
detailIdObjs[i].focus();
return false;
}
}
document.frm.submit();
}
</script>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>JK:支持民族工业,尽量少买X货</title>
<style>
TD,INPUT{ font-size:12; }
</style>
</head>
<body bgcolor=EEEEEE>
<form name="frm" action="about:结果页面" method=post >
<h4 align=center>JK的动态明细示例</h4>
<table align="center" bordercolor=cccccc border=1 width=100% >
<tr>
<td width=500>
</td>
<td align=right>
<input type="button" value="增加" class="bottom" onclick="addDetailProcess();">
<input type="button" value="删除" class="bottom" onclick="delDetailProcess();">
<input type="button" value="完成" class="bottom" onclick="submitProcess();">
</td>
</tr>
</table>
<div width=100% id=thedetailtableDIV>
<table align="center" bordercolor=cccccc border=1 width=100% >
<tbody id="tbDetailPrepare">
<tr>
<td ><input type="checkbox" name="record_select" ></td>
<td ><input type="text" name="detail_id" value='' ></td>
<td ><input type="text" name="detail_name" value='' ></td>
</tr>
</tbody>
<tr bgcolor=eeeeee id="trDetailTitles">
<td ><input type=checkbox onclick="selectallcheckbox(this)"></td>
<td >明细ID*</td>
<td >明细NAME</td>
</tr>
<tbody id="tbDetailUsed" >
<tr>
<td ><input type="checkbox" name="record_select" ></td>
<td ><input type="text" name="detail_id" value='' ></td>
<td ><input type="text" name="detail_name" value='' ></td>
</tr>
<tr height=0 ><td colspan=100 height=0 > 合计</td></tr>
</tbody>
</table>
</div>
</form>
<input name="theHistoryRecord" type=hidden value="">
</body>
</html>
<script language=javascript>
window.onload = historyOncemore;
window.onbeforeunload = fixHistory;
function fixHistory() //记住历史
{
document.all("theHistoryRecord").value=document.all("thedetailtableDIV").innerHTML.replace(/\n/g,"");
}
function historyOncemore() //恢复历史
{
if (document.all("theHistoryRecord").value!="")
{document.all("thedetailtableDIV").innerHTML=document.all("theHistoryRecord").value;
}
}
function selectallcheckbox(obj) //全选或全不选
{
var tureorfalse=obj.checked;
var theDetail=tbDetailUsed.rows;
for(var i=0;i<theDetail.length-1;i++)
{
theDetail[i].all("record_select").checked=tureorfalse;
}
}
function addDetailProcess(afterRowIndex) //增加明细
{
var alltbDetailUsed= document.all("tbDetailUsed").rows;
var theFirstSelectedDetail;
if (afterRowIndex==null)
{
for(var i=0;i<alltbDetailUsed.length-1;i++)
{
if (alltbDetailUsed[i].all("record_select").checked==true) {theFirstSelectedDetail=i;break;}
}
if (theFirstSelectedDetail==null) {theFirstSelectedDetail=alltbDetailUsed.length-2;}
}
else theFirstSelectedDetail=afterRowIndex;
var newRow = document.all("tbDetailPrepare").rows[0].cloneNode(true);
var desRow = alltbDetailUsed[theFirstSelectedDetail+1];
desRow.parentElement.insertBefore(newRow,desRow );
}
function delDetailProcess() //删除明细
{
var alltbDetailUsed= document.all("tbDetailUsed").rows;
if (confirm("确定选择正确并且要将这些明细删除")==false) return false;
for(var i=0;i<alltbDetailUsed.length-1;i++)
{
if (alltbDetailUsed[i].all("record_select").checked==true)
{
document.all("tbDetailUsed").deleteRow(i);
i=i-1;
}
}
}
function submitProcess()
{
var detailIdObjs=document.getElementsByName("detail_id");
for(var i=1;i<detailIdObjs.length;i++)
{
if(detailIdObjs[i].value=="")
{
alert("Please input!");
detailIdObjs[i].focus();
return false;
}
}
document.frm.submit();
}
</script>
