javascript 如何在onChange中传递两个值
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How to pass two values in onChange
提问by CalvinLChua
So, I have a 2 select tags and during the onChange event of the second select tag; I want to pass the values of the 2 select tags
所以，我有 2 个选择标签，并且在第二个选择标签的 onChange 事件期间；我想传递 2 个选择标签的值
<td>District:
<div>
<select name="district" id="district" onchange="getZone(this.value)">
<option value="ALL">ALL</option>
<?php
include_once 'newcompute.php';
$computation = new newcompute();
echo $computation->getDistrict();
?>
</select>
</div>
</td>
<td>Barangay:
<div id="barangay" name="barangay">
<select onchange="loadReport(barangay.value,district.value)">
<option>Select a Barangay</option>
<option value="ALL">ALL</option>
</select>
</div>
</td>
</tr>
So, I tried doing the onchange="loadReport(barangay.value,district.value)" but I only get a UNDEFINED value for district.value
因此，我尝试执行 onchange="loadReport(barangay.value,district.value)" 但我只得到了 District.value 的 UNDEFINED 值
How do I get loadReport to pass the current selected value of select tag district?
如何让 loadReport 传递选择标签区的当前选定值？
回答by Shashwat
You can retrieve the other tag in the function itself. No need to pass it from here.
您可以在函数本身中检索另一个标签。无需从这里传递。
function loadReport(barangayValue)
{
var district = document.getElementById('district');
var districtValue = district.value;
//Your stuff
}
回答by Sibu
Try this way
试试这个方法
<select onchange="loadReport(this.value,document.getElementById('district').value)">
<option>Select a Barangay</option>
<option value="ALL">ALL</option>
</select>
