如何将所有这些字段（name =“envelope []”）相加并在另一个输入中显示结果。我不知道该怎么做，因为这些字段是动态生成的。 tks Seby
更新：这是我尝试使用javascript函数的内容。我遇到的问题是函数启动但给我所有envelope []输入的结果。但是我需要每一行的结果，而不是所有的envelope []字段。 我改变了高亮度的场地，但最高金额发生了变化。 请参阅此处的示例：http://www.soniajanelle.ca/example.jpg
function findTotal(){
var arr = document.getElementsByName('envelope[]');
var tot=0;
for(var i=0;i<arr.length;i++){
if(parseInt(arr[i].value))
tot += parseInt(arr[i].value);
}
document.getElementById('totalsum').value = tot;
}
</script>
</head>
<body>
<div id="slimScroll" style="overflow:auto; overflow-x:hidden; overflow-y:hidden; height:<? echo $row_admin_detail['size_height'];?>px;" >
<table width="100%" align="center" border="0">
<tr><td height="0px" align="center" colspan="2"></td></tr>
<tr>
<table border="0" width="100%" class="ft12" >
<tr><td class="ann_title" align="center" colspan="2"><h2>Transactions</h2></td></tr>
<td valign="top" align="center" >
<div id="delDiv" >
</table>
<table width="450px" border="0" cellspacing="0" cellpadding="0" >
<tr class="table" height="125px">
<th width="1%" align="center"></th>
<th width="3%" align="center"></th>
<th width="10%" align="center" colspan="2" >Action</th>
<th width="8%" align="center">Type</th>
<th width="8%" align="center">Date</th>
<th width="20%" align="center">Payee</th>
<th width="8%" align="center">Amount</th>
<th width="20%" align="center">Envelope</th>
<th width="2%" align="center"></th>
<?
$query = "SELECT * from envelope_sub order by budgeted_amount desc";
$result = mysql_query($query) or die(mysql_error());
while ($envelopeSub = mysql_fetch_array($result))
{
echo "
<th width=\"8%\" align=\"right\"
><p><FONT size=\"2\"> ".$envelopeSub['real_amount']=number_format($envelopeSub['real_amount'],2,'.','')."$</FONT> </p><br>
<p class=\"rotate\">".$envelopeSub['name']."</p></th>
";
}
?>
</tr>
<tr >
<form method="post" action="main.php?act=stats&do=add&type=insert">
<th align="center"></th>
<th align="center"><img src="http://www.sebyphotographe.com/simplestudio/images/plus-icon 2.png" class="removeimg"></a></th>
<th align="center" colspan="2" ><div class="ann_search_submit"><input class="ann_submit" type="submit" value="Ajouter" /></div></th>
<th align="center"><input class="ann_textbox" name="type" type="text" size="8%"/></th>
<th align="center"><input class="ann_textbox" name="date" type="text" size="8%"/></th>
<th align="center"><input class="ann_textbox" name="payee" type="text" size="20%"/></th>
<th align="center"><input class="ann_textbox" name="amount" type="text" size="8%" onkeypress="return isNumeric(event)" /></th>
<th align="center"><select>
<option selected="selected">Distribuer montant...</option>
<option>par pourcentage</option>
<option>par montant fixe</option>
<option>Manuellement</option>
</select></th>
<th align="center"></th>
<?
$query = "SELECT * from envelope_sub order by id desc";
$result = mysql_query($query) or die(mysql_error());
while ($envelopeSub = mysql_fetch_array($result))
{
echo "
<input type=\"hidden\" name=\"envelope_id[]\" value=\"".$envelopeSub['id']."\">
<th align=\"center\"><input class=\"ann_textbox\" name=\"envelope[]\" type=\"text\" size=\"8%\" onkeypress=\"return isNumeric(event)\" /></th>
";
}
?>
</form>
</tr>
<?
$i=0;
$k=0;
$transactions = mysql_query("select * from transactions");
while($row_transactions=mysql_fetch_array($transactions))
{
?>
<form method="post" action="main.php?act=stats&do=edit&type=update">
<input type="hidden" name="id" value="<? echo $row_transactions['id']?>">
<tr class="<?=$bgcolor?>" nowrap="nowrap" onmouseover="style.backgroundColor='#EAEFF3';" onmouseout="style.backgroundColor='<?=$bgs?>'" >
<td align="left" nowrap="nowrap"> </td>
<td colspan="2" ><a href="main.php?act=stats&do=del&id=<? echo $row_transactions['id']?>&type=p" class="remove"><img src="http://www.sebyphotographe.com/simplestudio/images/icon_delete.png" class="removeimg"></a></td>
<td ><div class="ann_search_submit"><input class="ann_submit" type="submit" value="Update" ></div></td>
<td ><input class="ann_textbox" name="type" type="text" value="<?echo $row_transactions['type']?>" size="8%"/></td>
<td ><input class="ann_textbox" name="date" type="text" value="<?echo $row_transactions['date']?>" size="8%"/></td>
<td ><input class="ann_textbox" name="payee" type="text" value="<?echo $row_transactions['payee']?>" size="20%"/></td>
<? $row_transactions['amount']=number_format($row_transactions['amount'],2,'.',''); ?>
<td >
<? if ($row_transactions['type']=="Expense"){?>
<input id="totalsum" class="ann_textbox" name="amount" type="text" style="color:red;text-align:right;" value=" <?echo "(".$row_transactions['amount'].")";?>" size="8%"/></td><?
}ELSE{ ?>
<input id="totalsum" class="ann_textbox" name="amount" type="text" style="text-align:right;" value=" <?echo $row_transactions['amount'];?>" size="8%"/></td><? } ?>
<td ><input class="ann_textbox" name="envelope_<?echo $i?>" type="text" value="<?echo $row_transactions['envelope']?>" /></td>
<td></td>
<?
$query_env = "SELECT * from transactions_details WHERE transactions_id='".$row_transactions['id']."' order by enveloppe_sub_id desc";
$result_env = mysql_query($query_env) or die(mysql_error());
while ($env_amount = mysql_fetch_array($result_env))
{
if ($env_amount['amount']==0){$env_amount['amount']="";}
$env_amount['amount']=number_format($env_amount['amount'],2,'.','');
if ($env_amount['type']=="Expense"){
echo "
<input type=\"hidden\" name=\"trans_id[]\" value=\"".$env_amount['transactions_id']." \">
<input type=\"hidden\" name=\"envelope_id[]\" value=\"".$env_amount['enveloppe_sub_id']."\">
<input type=\"hidden\" name=\"type_env[]\" value=\"".$row_transactions['type']."\">
<td align=\"center\"><input onchange=\"findTotal()\" class=\"ann_textbox\" name=\"envelope[]\" type=\"text\" size=\"8%\" style=\"text-align:right;color:red\" value=\"(".$env_amount['amount'].")\" /></td>";
}ELSE{
echo "
<input type=\"hidden\" name=\"trans_id[]\" value=\"".$env_amount['transactions_id']." \">
<input type=\"hidden\" name=\"envelope_id[]\" value=\"".$env_amount['enveloppe_sub_id']."\">
<input type=\"hidden\" name=\"type_env[]\" value=\"".$row_transactions['type']."\">
<td align=\"center\"><input onchange=\"findTotal()\" class=\"ann_textbox\" name=\"envelope[]\" type=\"text\" size=\"8%\" style=\"text-align:right;\" value=\"".$env_amount['amount']."\" /></td>";
}
}
?>
</tr>
</form>
<?
$i++;
$k++;
}
?>
答案 0 :(得分：2)
这样的事情可以解决问题
var elems = document.getElementByName('envelope[]');
var sum = 0;
for (var i = 0; i < elems.length; i++)
{
sum += parseInt(elems[i].value);
}
document.getElementById('yourelementid').value = sum;