jQuery:如何检查是否选中了div中的所有单选按钮 [英] jquery: how to check if all radio buttons in a div are selected

问题描述

我的html看起来像这样

my html looks like this

<div id="div1">
  <input type="radio" name="r1" value="v1" />
  <input type="radio" name="r1" value="v2" />
  <input type="radio" name="r1" value="v3" />

  <input type="radio" name="r2" value="v1" />
  <input type="radio" name="r2" value="v2" />
  <input type="radio" name="r2" value="v3" />

  <input type="radio" name="r3" value="v1" />
  <input type="radio" name="r3" value="v2" />
  <input type="radio" name="r3" value="v3" />
</div>

单选按钮是在我的html上动态生成的，因此在那个div中，我不知道我有多少个单选按钮.

radio buttons are dynamically generated on my html so in that div i don't know how many radio buttons i have.

我想确保用户在提交表单之前将为每个用户选择一个值，我如何检查div中的所有单选按钮是否都已选中一个值?

i want to make sure that the user will select a value for each one of them before he submits the form, how can i check that all radio buttons inside my div has a value checked?

谢谢

推荐答案

稍微重构HTML -将每个广播组都包裹在(例如)div中.然后，您可以执行以下操作来在用户提交表单时验证表单:

Restructure your HTML slightly - wrap each radio group in (say) a div. Then you can just do something like this to validate the form when the user submits it:

if ($('div:not(:has(:radio:checked))').length) {
    alert("At least one group is blank");
}

当然，可以通过各种方式来调整它以适合您的HTML.这个想法来自找到所有未被选中的广播组

Of course this can be tweaked in various ways to suit your HTML. The idea was from Find all radio groups which haven't been selected

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