我正在寻找以下代码的帮助,
我有这样一种形式,每个下拉列表均取决于其上方的列表,因此,根据您选择的内容,正确的数据将显示在下一个选择上。我想基于下拉列表1选择国家激活下拉列表4(选择房屋)。所以选择国家时。 state(2)和house(4)都将被激活并显示数据。参见下面的截图,
这里是HTML代码
$(document).ready(function(){
load_json_data('country');
function load_json_data(id, parent_id)
{
var html_code = '';
$.getJSON('https://raw.githubusercontent.com/ahammoudi/jason_data/master/data.jason', function(data){
html_code += '<option value="">Select '+id+'</option>';
$.each(data, function(key, value){
if(id == 'country')
{
if(value.parent_id == '0')
{
html_code += '<option value="'+value.id+'">'+value.name+'</option>';
}
}
else
{
if(value.parent_id == parent_id)
{
html_code += '<option value="'+value.id+'">'+value.name+'</option>';
}
}
});
$('#'+id).html(html_code);
});
}
$(document).on('change', '#country', function(){
var country_id = $(this).val();
if(country_id != '')
{
load_json_data('state', country_id);
}
else
{
$('#state').html('<option value="">Select state</option>');
$('#city').html('<option value="">Select city</option>');
$('#house').html('<option value="">Select house</option>');
}
});
$(document).on('change', '#state', function(){
var state_id = $(this).val();
if(state_id != '')
{
load_json_data('city', state_id);
}
else
{
$('#city').html('<option value="">Select city</option>');
}
});
$(document).on('change', '#city', function(){
var city_id = $(this).val();
if(city_id != '')
{
load_json_data('house', city_id);
}
else
{
$('#house').html('<option value="">Select house</option>');
}
});
});
<!DOCTYPE html>
<html>
<head>
<title>Webslesson Tutorial | JSON - Dynamic Dependent Dropdown List using Jquery and Ajax</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<script src="script.js"></script>
<br /><br />
<div class="container" style="width:600px;">
<h2 align="center">JSON - Dynamic Dependent Dropdown List using Jquery and Ajax</h2><br /><br />
<select name="country" id="country" class="form-control input-lg">
<option value="">Select country</option>
</select>
<br />
<select name="state" id="state" class="form-control input-lg">
<option value="">Select state</option>
</select>
<br />
<select name="city" id="city" class="form-control input-lg">
<option value="">Select city</option>
</select>
<br />
<select name="house" id="house" class="form-control input-lg">
<option value="">Select house</option>
<br />
</div>
</body>
</html>
已修复。这是我所做的>