在下面的代码中,它可以很好地克隆表,但它不够深入,无法重命名表中每个表单字段的输入。例如Attendee1,Attendee2,Attendee3等
有没有办法,只需抓住NewEl.children找到表中的所有输入元素然后重命名它们?
我不想添加一行,我需要克隆整个表。
对于你们在cyberland所提出的任何帮助都会非常感激。
<form name="EditRoster" method="post" action="DoRoster.php">
<table id="RosterTbl" cellspacing="0" cellpadding="2">
<tr style="text-align:left;vertical-align:top;">
<td><b>Name</b>:</td>
<td>
<input type="text" name="Attendee" value="" size="25" onclick="alert(this.name)">
</td>
<td><b>Paid</b>:</td>
<td>
<input type="checkbox" name="Paid" value="Yes" size="25">
</td>
</tr>
<tr style="text-align:left;vertical-align:top;">
<td><b>Email</b>:</td>
<td>
<input type="text" name="Email" value="" size="25">
</td>
<td><b>Paid When</b>:</td>
<td>
<input type="text" name="PaidWhen" value="" size="10">
</td>
</tr>
</table>
<div style="padding:5px;">
<input type="hidden" name="NumStudents" value="0">
<input type="button" name="AddPersonButton" value="Add Person" onclick="CloneElement('RosterTbl','NumStudents');">
</div>
</form>
<script language="javascript">
var TheForm = document.forms.EditRoster;
function CloneElement(ElToCloneId, CounterEl) {
var CloneCount = TheForm[CounterEl].value;
CloneCount++;
TheForm[CounterEl].value = CloneCount;
var ElToClone = document.getElementById(ElToCloneId);
var NewEl = ElToClone.cloneNode(true);
NewEl.id = ElToCloneId + CloneCount;
NewEl.style.display = "block";
var NewField = NewEl.children;
for (var i = 0; i < NewField.length; i++) {
var InputName = NewField[i].name;
if (InputName) {
NewField[i].name = InputName + CloneCount;
}
var insertHere = document.getElementById(ElToCloneId);
insertHere.parentNode.insertBefore(NewEl, insertHere);
}
}
</script>
答案 0 :(得分:0)
看起来你是在正确的轨道上,但我认为你正在采取一些额外的步骤,所以我认为我简化了它;)
您遗失的一件事是NumStudents的值以字符串形式返回,因此您必须在其上调用parseInt()
。
var theForm = document.forms.EditRoster;
function insertAfter(referenceNode, newNode) {
referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
}
function CloneElement(cloneID, counterName) {
var clone = document.getElementById(cloneID);
var newClone = clone.cloneNode(true);
var counter = theForm[counterName].value = parseInt(theForm[counterName].value) + 1;
// Update the form ID
newClone.id = newClone.id + counter;
// Update the child Names
var items = newClone.getElementsByTagName("*");
for (var i = 0; i < items.length; i++) {
if (items[i].name != null)
items[i].name = items[i].name + counter;
}
insertAfter(clone, newClone);
}
这是jsFiddle上的工作副本。
P.S。我不确定你是否希望新字段清除,所以我离开了它们。