0

我有这个下拉菜单:

<select name="Filter" onchange="applyFilter(this);">
<option name="Item1" id=Item1 value="10.5">Test1</option>
<option name="Item2" id=Item2 value="27">Test2</option>
<option name="Item3" id=Item3 value="31">Test3</option>
</select>

我仍在学习 javascript,并正在尝试编写一个生成/加载查询字符串 URL 并将所选项目的值作为参数传递的函数。下拉菜单中的每个选项都需要有自己的 ID。这是我到目前为止的代码:

<script language="javascript1.2" type="text/javascript">
function applyFilter()
{ 
var currentQS = '';
var currentObject;
var currentURL = '' + window.location.href;

currentQS = unescape(window.location.search);
var newQS = '';

currentObject = document.getElementById('Item1');
newQS = $Querystring(newQS).set(currentObject.name,currentObject.value).toString();
newQS = newQS.substring(1,newQS.length);

currentObject = document.getElementById('Item2');
newQS = $Querystring(newQS).set(currentObject.name,currentObject.value).toString();
newQS = newQS.substring(1,newQS.length);

currentObject = document.getElementById('Item3');
newQS = $Querystring(newQS).set(currentObject.name,currentObject.value).toString();
newQS = newQS.substring(1,newQS.length);

var newURL = 'http://' + location.hostname + location.pathname + '?' + newQS;
window.location = newURL;
}
</script>

对此的任何帮助将不胜感激。

4

1 回答 1

0

不知道$Querystring指的是什么,但你应该能够这样做:

document.getElementsByName('Filter')[0].addEventListener('change', function() {
    window.location = 'http://' + location.hostname + location.pathname + '?' + this.name + '=' + this.options[this.selectedIndex].value;
});

但是,选择菜单可能不是您尝试做的最佳选择。看看这篇博文: http: //uxmovement.com/forms/stop-misusing-select-menus/

于 2013-02-10T20:17:23.663 回答