问题描述

大约一个月前，米特的问题无人回答.可悲的是，我现在也遇到了同样的情况.

About a month ago Mitt’s question went unanswered. Sadly, I’m running into the same situation now.

http://api.jquery.com/change/#comment-133939395

情况如下:我正在使用 jQuery 来捕获单选按钮中的更改.当单选按钮被选中时，我启用了一个编辑框.当取消选择单选按钮时，我希望禁用编辑框.

Here’s the situation: I’m using jQuery to capture the changes in a radio button. When the radio button is selected I enable an edit box. When the radio button is de-selected, I would like the edit box to be disabled.

启用工作.当我在组中选择不同的单选按钮时，change 事件not 被触发.有谁知道如何解决这个问题?

The enabling works. When I choose a different radio button in the group, the change event is not fired. Does anyone know how to fix this?

<input type="radio" id="r1" name="someRadioGroup"/> 

<script type="text/javascript">
    $("#r1").change(function () {
        if ($("#r1").attr("checked")) {
            $('#r1edit:input').removeAttr('disabled');
        }
        else {
            $('#r1edit:input').attr('disabled', true);
        }
    });
</script>

推荐答案

看起来 change() 函数仅在您选中一个单选按钮时调用，而不是在您取消选中它时调用.我使用的解决方案是将更改事件绑定到每个单选按钮:

Looks like the change() function is only called when you check a radio button, not when you uncheck it. The solution I used is to bind the change event to every radio button:

$("#r1, #r2, #r3").change(function () {

或者您可以为所有单选按钮指定相同的名称:

Or you could give all the radio buttons the same name:

$("input[name=someRadioGroup]:radio").change(function () {

这是一个有效的 jsfiddle 示例(更新自 Chris Porter 的评论.)

Here's a working jsfiddle example (updated from Chris Porter's comment.)

根据@Ray 的评论，您应该避免使用带有 . 的名称.这些名称在 jQuery 1.7.2 中有效，但在其他版本中无效(jsfiddle 示例.).

Per @Ray's comment, you should avoid using names with . in them. Those names work in jQuery 1.7.2 but not in other versions (jsfiddle example.).

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