1
How to show the dropdown Country blank when the State dropdown option is selected and also viceversa(country dropdown is selected and the state dropdown is blank
我們是否需要在選項中包含選項空白或者是否有任何語法, 我已通過禁用選項完成,當我選擇國家/地區下拉菜單時,禁用狀態下拉菜單。 jQuery的選擇/下拉框示例如何選擇otehr下拉選項中的某個選項時顯示下拉空白?
<script type="text/javascript" src="js/jquery.js"></script>
</head>
<body>
<h1>jQuery select/dropdown box example</h1>
<script type="text/javascript">
$(document).ready(function(){
$("#country").change(function() {
// disable the dropdown:
if($("#country option:selected").val()=="NONE"){
$('#state').attr('enabled','true');
}else {
$('#state').attr('disabled','true');
}
});
});
</script>
</head><body>
<select id="country">
<option value="NONE">-- Select --</option>
<option value="China">China</option>
<option value="United State">United State</option>
<option value="Malaysia">Malaysia</option>
</select>
<select id ="state">
<option value ="AP">AP</option>
<option value ="SP">SP</select>
</body>
</html>