2
這是我的代碼Jquery的更改事件不triggring
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>DDL change </title>
<script src="Scripts/jquery-1.10.2.min.js" type="text/javascript"></script>
<script>
$(document).ready(function() {
BindState();
doit();
$('#ddlState').on('change', function() { //this method is not triggering..
$('.ddlCity').val(parseInt(4)).change();
});
});
function BindCity() {
$('.ddlCity').append('<option value="1">one</option><option value="2">Two</option><option value="3">Three</option><option value="4">Four</option><option value="5">Five</option>');
};
function BindState() {
$('#ddlState').append('<option value="1">one</option><option value="2">Two</option><option value="3">Three</option><option value="4">Four</option><option value="5">Five</option>');
};
function doit() {
$('#ddlState').val(parseInt(3)).change();
};
</script>
</head>
<body>
<div>
<select id="ddlState" onchange="BindCity()">
</select>
</div>
<div>
<select class="ddlCity"></select>
</div>
</body>
</html>
上改變事件不是動態觸發,如果我改變下拉手動事件將觸發.. 好心給我解釋一下是什麼問題