Bootstrap 单选按钮“已选中"旗帜

问题描述

如果 #1 有效，则如果 #2 无效.检查下面的代码:

In case #1 works, in case #2 it do not works. Check the code bellow:

<div class="container">
    <div class="row">
        <h1>Radio Group #1</h1>
        <label class="radio-inline">
          <input name="radioGroup" id="radio1" value="option1" type="radio"> 1
        </label>
        <label class="radio-inline">
          <input name="radioGroup" id="radio2" value="option2" checked="checked" type="radio"> 2
        </label>
        <label class="radio-inline">
          <input name="radioGroup" id="radio3" value="option3" type="radio"> 3
        </label>
    </div>
    <div class="row">
        <h1>Radio Group #2</h1>
        <label for="year" class="control-label input-group">Year</label>
        <div class="btn-group" data-toggle="buttons">
            <label class="btn btn-default">
                <input name="year" value="2011" type="radio">2011
            </label>
            <label class="btn btn-default">
                <input name="year" value="2012" type="radio">2012
            </label>
            <label class="btn btn-default">
                <input name="year" value="2013" checked="checked" type="radio">2013
            </label>
        </div>  
    </div>  
</div>

您可以在这里看到它的实际效果:http://bootply.com/84165

You can see it in action here: http://bootply.com/84165

推荐答案

假设您希望选中一个默认按钮.

Assuming you want a default button checked.

<div class="row">
    <h1>Radio Group #2</h1>
    <label for="year" class="control-label input-group">Year</label>
    <div class="btn-group" data-toggle="buttons">
        <label class="btn btn-default">
            <input type="radio" name="year" value="2011">2011
        </label>
        <label class="btn btn-default">
            <input type="radio" name="year" value="2012">2012
        </label>
        <label class="btn btn-default active">
            <input type="radio" name="year" value="2013" checked="">2013
        </label>
    </div>
  </div>

将 active 类添加到您希望默认的按钮(label 标签)，并将 checked="" 添加到它的 input 标记，因此默认以表单形式提交.

Add the active class to the button (label tag) you want defaulted and checked="" to its input tag so it gets submitted in the form by default.

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