Bootstrap Input Groups
This chapter explains about one more feature Bootstrap supports, the Input Groups. Input groups are extended Form Controls. Using input groups you can easily prepend and append text or buttons to text-based inputs.
By adding prepended and appended content to an input field, you can add common elements to the user’s input. For example, you can add the dollar symbol, the @ for a Twitter username, or anything else that might be common for your application interface.
To prepend or append elements to a .form-control:
Wrap it in a <div> with class .input-group
As a next step, within that same <div> , place your extra content inside a <span> with class.input-group-addon.
Now place this <span> either before or after the <input> element.
For cross browser compatibility, avoid using <select> elements here as they cannot be fully styled in WebKit browsers. Also do not apply input group classes directly to form groups. An input group is an isolated component.
Basic Input Group
Following examples demonstrates basic input group:
<div style="padding: 100px 100px10px;">
<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>
Input Group Sizing
You can change the size of the input groups, by adding the relative form sizing classes like.input-group-lg, input-group-sm, input-group-xs to the .input-group itself. The contents within will automatically resize.
Following examples demonstrates this:
<div style="padding: 100px 100px10px;">
<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>
Checkboxes and radio addons
You can preappend or append radio buttons and checkboxes instead of text as demonstrated in the following example:
<div style="padding: 100px 100px10px;">
<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 addons
You can even preappend or append buttons in input groups. Instead of .input-group-addonclass, you'll need to use class .input-group-btnto wrap the buttons. This is required due to default browser styles that cannot be overridden. Following examples demonstrates this:
<div style="padding: 100px 100px10px;">
<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="btnbtn-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="btnbtn-default" type="button">
Go!
</button>
</span>
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
</div><!-- /.row -->
</form>
</div>
Buttons with dropdowns
Adding button with dropdown menus in input groups can be done by simply wrapping the button and dropdown menu in a .input-group-btn class as demonstrated in the following example:
<div style="padding: 100px 100px10px;">
<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">
DropdownMenu
<span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li><ahref="#">Action</a></li>
<li><ahref="#">Another action</a></li>
<li><ahref="#">Something else here</a></li>
<li class="divider"></li>
<li><ahref="#">Separated link</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">
DropdownMenu
<span class="caret"></span>
</button>
<ul class="dropdown-menu pull-right">
<li><ahref="#">Action</a></li>
<li><ahref="#">Another action</a></li>
<li><ahref="#">Something else here</a></li>
<li class="divider"></li>
<li><ahref="#">Separated link</a></li>
</ul>
</div><!-- /btn-group -->
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
</div><!-- /.row -->
</form>
</div>
Segmented buttons
To segment button dropdowns in input groups, use the same general style as the dropdown button but add a primary action along with the dropdown as can be seen in the following example:
<div style="padding: 100px 100px10px;">
<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">Dropdwon Menu
</button>
<button type="button" class="btn btn-default
dropdown-toggle" data-toggle="dropdown" tabindex="-1">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
<ul class="dropdown-menu">
<li><ahref="#">Action</a></li>
<li><ahref="#">Another action</a></li>
<li><ahref="#">Something else here</a></li>
<li class="divider"></li>
<li><ahref="#">Separated link</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">Dropdwon Menu
</button>
<button type="button" class="btn btn-default
dropdown-toggle" data-toggle="dropdown" tabindex="-1">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
<ul class="dropdown-menu pull-right">
<li><ahref="#">Action</a></li>
<li><ahref="#">Another action</a></li>
<li><ahref="#">Something else here</a></li>
<li class="divider"></li>
<li><ahref="#">Separated link</a></li>
</ul>
</div><!-- /btn-group -->
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
</div><!-- /.row -->
</form>
</div>
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