如何使无线电输入成为必需? [英] How to make radio inputs required?

问题描述

我有一个表格，供用户选择性别的无线电输入.如何将性别作为必填项(用户必须选择女性还是男性，否则他们会按照通常的required提示输入).

I have radio inputs in a form for the user to select their gender. How do I make gender a required input (user must select either female or male or they get a prompt as per the usual required).

我尝试如下所示添加required，但是它不起作用(用户可以继续选择而不选择女性或男性).

I tried adding required as shown below but it doesn't work (user can continue without selecting either female or male).

              <div class="form-group btn-group" data-toggle="buttons">
                <label class="btn btn-default btn-lg">
                  <input type="radio" name="gender" value="Female" required><i class="fa fa-female"></i> Female
                </label>
                <label class="btn btn-default btn-lg">
                  <input type="radio" name="gender" value="Male" required><i class="fa fa-male"></i> Male
                </label>
              </div>

更新1

根据答案中的建议，我更新了代码，以便只有一个无线电输入包含required，但仍然无法正常工作.

Update 1

As suggested in the answers I updated the code so that only one radio input contains required however it still doesn't work.

              <div class="form-group btn-group" data-toggle="buttons">
                <label class="btn btn-default btn-lg">
                  <input type="radio" name="gender" value="Female" required><i class="fa fa-female"></i> Female
                </label>
                <label class="btn btn-default btn-lg">
                  <input type="radio" name="gender" value="Male"><i class="fa fa-male"></i> Male
                </label>
              </div>

更新2

请按以下要求提供完整的代码:

Update 2

As requested here is the complete code:

          <form action="/client/index.php" method="post" role="form">
            <fieldset>
              <div class="form-group">
                <input class="form-control input-lg" placeholder="Nickname" name="nickname" type="text" autofocus required>
              </div>
              <div class="form-group btn-group" data-toggle="buttons">
                <label class="btn btn-default btn-lg">
                  <input type="radio" name="gender" value="Female" required><i class="fa fa-female"></i> Female
                </label>
                <label class="btn btn-default btn-lg">
                  <input type="radio" name="gender" value="Male"><i class="fa fa-male"></i> Male
                </label>
              </div>
              <h4>Options</h4>
              <div class="form-group">
                <div class="row">
                  <div class="col-md-6">
                    Block private chats
                  </div>
                  <div class="col-md-6">
                    <input type="checkbox" name="block" data-on-text="Yes" data-off-text="No">
                  </div>
                </div>
              </div>
              <button type="submit" name="submit" class="btn btn-lg btn-primary btn-block">Start</button>
            </fieldset>
          </form>

推荐答案

只需为无线电组的一个输入设置required属性，

Just set the required attribute for one input of the radiogroup,

例如:

<form>
<label for="input1">1:</label><input type="radio" name="test" id="input1" required value="1" /><br />
<label for="input2">2:</label><input type="radio" name="test" id="input2" value="2" /><br />
<label for="input3">3:</label><input type="radio" name="test" id="input3" value="3" /><br />
<input type="submit" value="send" />
</form>

更新

我刚刚注意到，您在代码中编写的代码效果很好..请参见小提琴.

I just noticed that what you have written in your code works perfectly..See the fiddle..

这篇关于如何使无线电输入成为必需?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IT屋！