我想将选定的值推入选择/选项下拉列表中
我想仅使用 JavaScript 在选择/选项下拉列表中选择一个值。
已修订 抱歉造成混乱。这是修改后的代码。
document.getElementById("sel_activity").value = activity;
这也可以，但有点长..
<select id='sel_activity'>
<option value='CYC'>Cycle Count</option>
<option value='INV'>Inventory Count</option>
<option value='INVDROP'>Inventory Drop off</option>
<option value='INVPICK'>Inventory Pick up</option>
<option value='TRAIN'>Training</option>
</select>
<script type="text/javascript">
var select = 'CYC';
var myselect=document.getElementById("sel_activity")
for (var i=0; i<myselect.options.length; i++){
if (myselect.options[i].value == select)
{
myselect.options[i].selected = true;
}
else
{
myselect.options[i].selected = false;
}
}
</script>
I want to select a value in a select/option dropdown using javascript only.
Revised
sorry for confusion. Here is revised code.
document.getElementById("sel_activity").value = activity;
This will also work, but is a bit longer..
<select id='sel_activity'>
<option value='CYC'>Cycle Count</option>
<option value='INV'>Inventory Count</option>
<option value='INVDROP'>Inventory Drop off</option>
<option value='INVPICK'>Inventory Pick up</option>
<option value='TRAIN'>Training</option>
</select>
<script type="text/javascript">
var select = 'CYC';
var myselect=document.getElementById("sel_activity")
for (var i=0; i<myselect.options.length; i++){
if (myselect.options[i].value == select)
{
myselect.options[i].selected = true;
}
else
{
myselect.options[i].selected = false;
}
}
</script>
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http://devedge-temp.mozilla.org /library/manuals/2000/javascript/1.3/reference/option.html
http://devedge-temp.mozilla.org/library/manuals/2000/javascript/1.3/reference/option.html
使用 jQuery
jQuery 是一个轻量级的 JavaScript 库，它在 DOm 遍历、事件处理和 ajax 交互方面非常有帮助。
http://jquery.com/
将 jQuery 添加到页面非常简单，只需在 head 部分添加一行代码即可包含 jQuery 库
using jQuery
jQuery is a lightweight javasscript library which is very helpful in DOm traveral,event handling and ajax intearactions.
http://jquery.com/
Adding jQuery to your page is simple as adding one line of code in the head section to include the jQuery library