本文介绍了根据下拉菜单显示多个字段的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我尝试根据指定其他的下拉菜单显示/隐藏字段,但只有第一个元素显示,如果选择,我如何显示所有字段li id =osother?
I'm trying to show / hide fields based on the drop down menu specifying 'other', however only the first element shows, how do I make all fields with li id = "osother" appear when selected?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery Show Hide Using Selectbox</title>
<style type="text/css">
#osother{display:none;}
</style>
<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("select").change(function(){
$( "select option:selected").each(function(){
if($(this).attr("value")=="otheros"){
$("#osother").hide();
$("#osother").show();
}
});
}).change();
});
</script>
</head>
<body>
<li>
<p>Operating System: <Select Class="selectmenu" id="whatever" name="OS" onchange="markDirty();" required>
<option value = "">-- Select an Option --</option>
<option value = "Win">Windows</option>
<option value = "ios">iOS</option>
<option value = "otheros">Other</option>
</select>
</p></li>
<li id="osother">
Please Specify: <label id="oslabel"><input name="Other OS" type="text" placeholder="Other OS" size="50" /></label></li>
<li id="osother">
Version: <label id="version"><input name="OSV" type="text" placeholder="OS Version" size="50" /></label></li>
</body>
</html>
推荐答案
您必须在文档中使用ID一次,您必须将 #osother
更改为 .osother
。此外,当 osother
更改下拉菜单的值时,应隐藏字段。
You must use ID only once in a document, so you have to change #osother
to .osother
. And also fields should be hidden when the value of dropdown is changed from osother
.
在这里。
HTML / p>
HTML
<ul>
<li>
<p>Operating System:
<Select Class="selectmenu" id="whatever" name="OS" onchange="markDirty();" required>
<option value="">-- Select an Option --</option>
<option value="Win">Windows</option>
<option value="ios">iOS</option>
<option value="otheros">Other</option>
</select>
</p>
</li>
<li class="osother">Please Specify:
<label id="oslabel">
<input name="Other OS" type="text" placeholder="Other OS" size="50" />
</label>
</li>
<li class="osother">Version:
<label id="version">
<input name="OSV" type="text" placeholder="OS Version" size="50" />
</label>
</li>
</ul>
JS
$(document).ready(function () {
$("select").change(function () {
$("select option:selected").each(function () {
if ($(this).attr("value") == "otheros") {
$(".osother").show();
} else {
$(".osother").hide();
}
});
}).change();
});
CSS
.osother {
display:none;
}
这篇关于根据下拉菜单显示多个字段的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!