javascript 从动态下拉列表中选择国家/州
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Selected Country / State From Dynamic Dropdown List
提问by Saint Robson
I'm using this Country / State dynamic selection on my code :
我在我的代码中使用了这个国家/州动态选择：
and here's the demo page : http://bdhacker.sourceforge.net/javascript/countries/
这是演示页面：http: //bdhacker.sourceforge.net/javascript/countries/
but, unfortunately when I create setting / member profile page which I need to display selected country and state so user can see what they already chosen, I can't just put user's selected as 'value' on it.
但是，不幸的是，当我创建设置/成员个人资料页面时，我需要显示选定的国家和州，以便用户可以看到他们已经选择的内容，我不能只是将用户选择为“价值”。
here's what I see on page source even I have select a country and a state :
这是我在页面源上看到的内容，即使我选择了一个国家和一个州：
Select Country: <select onchange="print_state('state',this.selectedIndex);" id="country" name ="country"></select>
City/District/State: <select name ="state" id ="state"></select>
how to put value on that ? because I did like this :
如何赋予它价值？因为我确实喜欢这样：
Select Country:
<select onchange="print_state('state',this.selectedIndex);" id="country" name ="country" value="Indonesia"></select>
City/District/State: <select name ="state" id ="state"></select>
and still I don't see there's a country selected. thanks!
我仍然没有看到选择了一个国家。谢谢！
回答by br3t
try this solution http://jsfiddle.net/yDAmR/
试试这个解决方案http://jsfiddle.net/yDAmR/
print_country("country");
$('#country').val('Indonesia');
print_state('state',$('#country')[0].selectedIndex);
回答by Thomas Gemal
The reason you see the USA states for other countries is that the JavaScript is missing a reset of the state drop-down list. Just add "option_str.length=0; // Clear list" in the JS file before you split list array.
您看到其他国家的美国州的原因是 JavaScript 缺少州下拉列表的重置。在拆分列表数组之前，只需在 JS 文件中添加“option_str.length=0; // 清除列表”即可。
