[英]quick javascript question about a dropdown with onchange action
Using smarty, take a look at the code below: 使用smarty,请看下面的代码:
<select name="unitSelect" class="uniForm" id="unitSelect" style="width:1250px;" onchange="location.href='{$ABS_MANAGER_URL}/managerEditUnit.php?unit_id={$set[i].id}'; return false">
<option value="0" selected="selected">Select Unit</option>
{section name=i loop=$set}
<option value="{$set[i].id}" >{$set[i].unitName}</option>
{/section}
</select>
What I want, is for the value in the options to load into the select onchange"" call, for the GET variable... I can't figure out how to do this with javascript...any ideas anyone? 我想要的是将选项中的值加载到select onchange“”调用中,对于GET变量...我不知道如何使用javascript ...有什么想法吗?
Thanks. 谢谢。
UPDATE UPDATE
It wasn't easy, but between a few of your comments I got one working, thanks all: 这并不容易,但是在您的一些评论中,我有一条可以奏效,谢谢:
<script type="text/javascript">
function viewUnit(value) {
var url = "managerEditUnit.php?unit_id=";
url += value;
document.location.href=url;
}
</script>
Here is an example: 这是一个例子:
<select onchange="alert(this.options[this.selectedIndex].value)">
<option value="0">Option 1</option>
<option value="1">Option 2</option>
<option value="2">Option 3</option>
</select>
EDIT: 编辑:
Sorry for the duplicate. 对不起,重复。
If you want to use it with a function: 如果要与功能一起使用:
function yourfunction(value) {
alert(value);
}
And ofcourse change alert
in the above HTML to yourfunction
. 当然可以将以上HTML中的
alert
更改为您的yourfunction
。
You could get the value in the select object by doing this in the onchange event: 您可以通过在onchange事件中执行以下操作来在select对象中获取值:
onchange="alert(this.options[this.selectedIndex]"
Since you can get that value, then you can dynamically build up your GET request. 由于可以获得该值,因此可以动态建立GET请求。 Some like this:
像这样:
onchange="document.location.href='somepage.php?id=' this.options[this.selectedIndex];"
jQuery makes it even easier, you can just use: jQuery使它变得更加容易,您可以使用:
onchange="alert($(this).val())"
应该这样做:
<select onchange="yourfunction(this.options[this.selectedIndex].value);">
I could suggest you to use following for getting the value when select an option from dropdownlist --> 我建议您从下拉列表中选择一个选项时,使用以下方法获取值->
this.value
moving to your javascript means --> 移到您的javascript意味着->
onchange="JavaScript:userDefinedFunction(this.value);"
eg:: 例如::
select name='state' onchange="JavaScript:userDefinedFunction(this.value);"
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