如果选择特定选项值则显示字段 - 必须在页面加载时工作
这个天才代码适用于复选框:
$(document).ready(function() {
$("#Languages-spoken-and-understood-8").change(function() {
$("#li-2-21")[$(this).is(":checked") ? 'show' : 'hide']("fast")
}).change();
});
我喜欢的是它可以在负载上工作。
我试图将其修改为选择框。代码是由 WordPress 上的 cforms 自动生成的。
<select name="Severity-of-your-symptoms" id="Severity-of-your-symptoms" class="cformselect" >
<option value="full01_severity_notselected" selected="selected">Please select...</option>
<option value="Mild">Mild</option>
<option value="Moderate">Moderate</option>
<option value="Severe">Severe</option>
<option value="full01_severity_other">Other</option>
</select>
这就是我尝试过的:
$('#Severity-of-your-symptoms').change(function() {
$("#li-10-14")[("#Severity-of-your-symptoms[value='full01_severity_other']").attr('selected', 'selected') ? 'show' : 'hide']("fast")
});change();
显然它不起作用。仅当选择“其他”时,才会出现文本框。 有没有办法以某种方式再次使用那个漂亮的代码,或者我是否需要更大的函数?
谢谢!
This genius code works fine for checkboxes:
$(document).ready(function() {
$("#Languages-spoken-and-understood-8").change(function() {
$("#li-2-21")[$(this).is(":checked") ? 'show' : 'hide']("fast")
}).change();
});
What I love about is that it works onload.
I was trying to modify it for a select box. Code is autogenerated by cforms on wordpress.
<select name="Severity-of-your-symptoms" id="Severity-of-your-symptoms" class="cformselect" >
<option value="full01_severity_notselected" selected="selected">Please select...</option>
<option value="Mild">Mild</option>
<option value="Moderate">Moderate</option>
<option value="Severe">Severe</option>
<option value="full01_severity_other">Other</option>
</select>
This is what I tried:
$('#Severity-of-your-symptoms').change(function() {
$("#li-10-14")[("#Severity-of-your-symptoms[value='full01_severity_other']").attr('selected', 'selected') ? 'show' : 'hide']("fast")
});change();
Obviously it's not working. Only if "Other" is selected, the text box should appear.
Is there a way to use that nifty code again somehow or do I need a bigger function?
Thanks!
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你就快到了,这将是一个更短的方法:
你可以在这里尝试一下< /a>.
获取或设置
You're almost there, this would be a much shorter way of doing it:
You can give it a try here.
When getting or setting the value of a
<select>
(or any other input type element) you can use.val()
. In case anyone wants this without the animation, it'd look like this: