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Bootstrap input box group
This chapter will explain another feature that Bootstrap supports, input box groups. The input box group extends from the form control. Using input box groups, you can easily add text or buttons as prefix and suffix to text-based input boxes.
You can add common elements to user input by adding prefix and suffix content to input fields. For example, you could add a dollar sign, or add @ before a Twitter username, or any other common element required by the API.
The steps to add a prefix or suffix element to .form-control are as follows:
- Put prefix or suffix elements in a class with class .input-group
middle.
- Next, in the same
Inside, place extra content inside the class of .input-group-addon.
- Place this before or after the element.
Note: To maintain cross-browser compatibility, avoid using elements as they don't fully render in WebKit browsers. Also don't apply the class of the input box group directly to the form group, the input box group is an isolated component.
Basic input box group
The following example demonstrates the basic input box group:
<div style="padding: 100px 100px 10px;">
<form class="bs-example bs-example-form" role="form">
<div class="input-group">
<span class="input-group-addon">@</span>
<input type="text" class="form-control" placeholder="twitterhandle">
</div>
<br>
<div class="input-group">
<input type="text" class="form-control">
<span class="input-group-addon">.00</span>
</div>
<br>
<div class="input-group">
<span class="input-group-addon">$</span>
<input type="text" class="form-control">
<span class="input-group-addon">.00</span>
</div>
</form>
</div>
The size of the input box group
You can change the size of the input group by adding a relative form size class (eg .input-group-lg , input-group-sm ) to .input-group. The content in the input box is automatically resized.
The following example demonstrates this:
<div style="padding: 100px 100px 10px;">
<form class="bs-example bs-example-form" role="form">
<div class="input-group input-group-lg">
<span class="input-group-addon">@</span>
<input type="text" class="form-control" placeholder="Twitterhandle">
</div>
<br>
<div class="input-group">
<span class="input-group-addon">@</span>
<input type="text" class="form-control" placeholder="Twitterhandle">
</div>
<br>
<div class="input-group input-group-sm">
<span class="input-group-addon">@</span>
<input type="text" class="form-control" placeholder="Twitterhandle">
</div>
</form>
</div>
Checkbox and radio plugins
You can use the checkbox and radio widgets as prefix or suffix elements of the input box group, as shown in the following example:
<div style="padding: 100px 100px 10px;">
<form class="bs-example bs-example-form" role="form">
<div class="row">
<div class="col-lg-6">
<div class="input-group">
<span class="input-group-addon">
<input type="checkbox"></span>
<input type="text" class="form-control">
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
<br>
<div class="col-lg-6">
<div class="input-group">
<span class="input-group-addon">
<input type="radio"></span>
<input type="text" class="form-control">
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
</div><!-- /.row -->
</form>
</div>
button plugin
You can also use the button as the prefix or suffix element of the input box group. At this time, instead of adding the .input-group-addon class, you need to use class.input -group-btn to wrap the button. This is required because default browser styles are not overridden. The following example demonstrates this:
<div style="padding: 100px 100px 10px;">
<form class="bs-example bs-example-form" role="form">
<div class="row">
<div class="col-lg-6">
<div class="input-group">
<span class="input-group-btn">
<button class="btn btn-default" type="button">Go!</button>
</span>
<input type="text" class="form-control">
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
<br>
<div class="col-lg-6">
<div class="input-group">
<input type="text" class="form-control">
<span class="input-group-btn">
<button class="btn btn-default" type="button">Go!</button>
</span>
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
</div><!-- /.row -->
</form>
</div>
button with dropdown menu
To add a button with a drop-down menu in an input group, simply wrap the button and the drop-down menu in a .input-group-btn class, as shown in the following example:
<div style="padding: 100px 100px 10px;">
<form class="bs-example bs-example-form" role="form">
<div class="row">
<div class="col-lg-6">
<div class="input-group">
<div class="input-group-btn">
<button type="button" class="btn btn-default
dropdown-toggle" data-toggle="dropdown">下拉菜单
<span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li>
<a href="#">功能</a>
</li>
<li>
<a href="#">另一个功能</a>
</li>
<li>
<a href="#">其他</a>
</li>
<li class="divider"></li>
<li>
<a href="#">分离的链接</a>
</li>
</ul>
</div><!-- /btn-group -->
<input type="text" class="form-control">
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
<br>
<div class="col-lg-6">
<div class="input-group">
<input type="text" class="form-control">
<div class="input-group-btn">
<button type="button" class="btn btn-default
dropdown-toggle" data-toggle="dropdown">下拉菜单
<span class="caret"></span>
</button>
<ul class="dropdown-menu pull-right">
<li>
<a href="#">功能</a>
</li>
<li>
<a href="#">另一个功能</a>
</li>
<li>
<a href="#">其他</a>
</li>
<li class="divider"></li>
<li>
<a href="#">分离的链接</a>
</li>
</ul>
</div><!-- /btn-group -->
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
</div><!-- /.row -->
</form>
</div>
Split dropdown button
Add a split button with a drop-down menu in the input group, using roughly the same style as the drop-down menu button, but adding the main functionality to the drop-down menu, as shown in the following example:
<div style="padding: 100px 100px 10px;">
<form class="bs-example bs-example-form" role="form">
<div class="row">
<div class="col-lg-6">
<div class="input-group">
<div class="input-group-btn">
<button type="button" class="btn btn-default" tabindex="-1">下拉菜单</button>
<button type="button" class="btn btn-default
dropdown-toggle" data-toggle="dropdown" tabindex="-1">
<span class="caret"></span>
<span class="sr-only">切换下拉菜单</span>
</button>
<ul class="dropdown-menu">
<li>
<a href="#">功能</a>
</li>
<li>
<a href="#">另一个功能</a>
</li>
<li>
<a href="#">其他</a>
</li>
<li class="divider"></li>
<li>
<a href="#">分离的链接</a>
</li>
</ul>
</div><!-- /btn-group -->
<input type="text" class="form-control">
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
<br>
<div class="col-lg-6">
<div class="input-group">
<input type="text" class="form-control">
<div class="input-group-btn">
<button type="button" class="btn btn-default" tabindex="-1">下拉菜单</button>
<button type="button" class="btn btn-default
dropdown-toggle" data-toggle="dropdown" tabindex="-1">
<span class="caret"></span>
<span class="sr-only">切换下拉菜单</span>
</button>
<ul class="dropdown-menu pull-right">
<li>
<a href="#">功能</a>
</li>
<li>
<a href="#">另一个功能</a>
</li>
<li>
<a href="#">其他</a>
</li>
<li class="divider"></li>
<li>
<a href="#">分离的链接</a>
</li>
</ul>
</div><!-- /btn-group -->
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
</div><!-- /.row -->
</form>
</div>
