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Home Web Front-end HTML Tutorial What are the ways to layout Bootstrap forms? How to create Bootstrap form layout (with code)

What are the ways to layout Bootstrap forms? How to create Bootstrap form layout (with code)

PHPz
PHPz
Aug 03, 2018 pm 04:22 PM


What is Bootstrap? Bootstrap is a front-end framework for quickly developing web applications and websites. So, how to create a form with Bootstrap? Bootstrap uses some simple HTML tags and extended classes to create forms of different styles. Let's take a look at how Bootstrap creates forms.

Bootstrap form layout

[Related video recommendations: Bootstrap tutorial]

Bootstrap provides The following types of form layouts: vertical form (default), inline form, horizontal form, vertical or basic form

The basic form structure comes with Bootstrap, and individual form controls automatically receive some global styles. Listed below are the steps to create a basic form:

Add role="form" to the parent

element.

Put labels and controls in a

with class .form-group. This is necessary to obtain optimal spacing.

Add class ="form-control" to all text elements ,

Example:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"> 
    <title>Bootstrap 实例 - 基本表单</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">  
    <script src="https://cdn.bootcss.com/jquery/2.1.1/jquery.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>

<form role="form">
    <div class="form-group">
        <label for="name">名称</label>
        <input type="text" class="form-control" id="name" 
               placeholder="请输入名称">
    </div>
    <div class="form-group">
        <label for="inputfile">文件输入</label>
        <input type="file" id="inputfile">
        <p class="help-block">这里是块级帮助文本的实例。</p>
    </div>
    <div class="checkbox">
        <label>
            <input type="checkbox"> 选择打勾
        </label>
    </div>
    <button type="submit" class="btn btn-default">提交</button>
</form>
    
</body>
</html>
Copy after login

The running results are as follows:

What are the ways to layout Bootstrap forms? How to create Bootstrap form layout (with code)


##within Inline form

If you need to create a form with all its elements inline, left-aligned, and labels side by side, add class .form-inline to the tag.

Example

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"> 
    <title>Bootstrap 实例 - 内联表单</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">  
    <script src="https://cdn.bootcss.com/jquery/2.1.1/jquery.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>

<form class="form-inline" role="form">
    <div class="form-group">
        <label class="sr-only" for="name">名称</label>
        <input type="text" class="form-control" id="name" 
               placeholder="请输入名称">
    </div>
    <div class="form-group">
        <label class="sr-only" for="inputfile">文件输入</label>
        <input type="file" id="inputfile">
    </div>
    <div class="checkbox">
        <label>
            <input type="checkbox"> 请打勾
        </label>
    </div>
    <button type="submit" class="btn btn-default">提交</button>
</form>

</body>
</html>
Copy after login

The running results are as follows:

What are the ways to layout Bootstrap forms? How to create Bootstrap form layout (with code)


By default, the input in Bootstrap , select and textarea have 100% width. When using inline forms, you need to set a width on the form control.

Using class .sr-only, you can hide the label of the inline form.

Horizontal form

Horizontal forms are different from other forms not only in the number of marks, but also in the form presentation. To create a horizontally laid out form, follow these steps:

Add class .form-horizontal to the parent element.

Put labels and controls in a
with class .form-group.

Add class .control-label to the label.

Example

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"> 
    <title>Bootstrap 实例 - 水平表单</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">  
    <script src="https://cdn.bootcss.com/jquery/2.1.1/jquery.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>

<form class="form-horizontal" role="form">
    <div class="form-group">
        <label for="firstname" class="col-sm-2 control-label">名</label>
        <div class="col-sm-10">
            <input type="text" class="form-control" id="firstname" 
                   placeholder="请输入名字">
        </div>
    </div>
    <div class="form-group">
        <label for="lastname" class="col-sm-2 control-label">姓</label>
        <div class="col-sm-10">
            <input type="text" class="form-control" id="lastname" 
                   placeholder="请输入姓">
        </div>
    </div>
    <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
            <div class="checkbox">
                <label>
                    <input type="checkbox"> 是否记住
                </label>
            </div>
        </div>
    </div>
    <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
            <button type="submit" class="btn btn-default">登录</button>
        </div>
    </div>
</form>

</body>
</html>
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The results are as follows

Supported form controls

Bootstrap supports the most common form controls, mainly input, textarea, checkbox, radio and select.

Input box (Input)

The most common form text field is the input box input. Users can enter most necessary form data there. Bootstrap provides support for all native HTML5 input types, including: text, password, datetime, datetime-local, date, month, time, week, number, email, url, search, tel and color. Appropriate type declarations are required in order for the input to be fully styled.

Example

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"> 
    <title>Bootstrap 实例 - 输入框</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">  
    <script src="https://cdn.bootcss.com/jquery/2.1.1/jquery.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>

<form role="form">
    <div class="form-group">
        <label for="name">标签</label>
        <input type="text" class="form-control" placeholder="文本输入">
    </div>
 </form>

</body>
</html>
Copy after login

The running results are as follows:

What are the ways to layout Bootstrap forms? How to create Bootstrap form layout (with code)

Textarea

When you need to enter multiple lines, you can use the text box textarea. Change the rows attribute if necessary (fewer rows = smaller boxes, more rows = larger boxes).

Example

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"> 
    <title>Bootstrap 实例 - 文本框</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">  
    <script src="https://cdn.bootcss.com/jquery/2.1.1/jquery.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>

<form role="form">
    <div class="form-group">
        <label for="name">文本框</label>
        <textarea class="form-control" rows="3"></textarea>
    </div>
</form>

</body>
</html>
Copy after login

The results are as follows:

What are the ways to layout Bootstrap forms? How to create Bootstrap form layout (with code)

##Checkbox and Radio

Checkboxes and radio buttons are used to allow the user to select from a series of preset options.

When creating a form, use a checkbox if you want the user to select several options from a list. If you restrict users to selecting only one option, use radio.

Use .checkbox-inline or .radio-inline class for a series of checkboxes and radio buttons to control them to be displayed on the same line.

The following example demonstrates both types (default and inline):

Example

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"> 
    <title>Bootstrap 实例 - 复选框和单选按钮</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">  
    <script src="https://cdn.bootcss.com/jquery/2.1.1/jquery.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>

<label for="name">默认的复选框和单选按钮的实例</label>
<div class="checkbox">
    <label><input type="checkbox" value="">选项 1</label>
</div>
<div class="checkbox">
    <label><input type="checkbox" value="">选项 2</label>
</div>
<div class="radio">
    <label>
        <input type="radio" name="optionsRadios" id="optionsRadios1" value="option1" checked> 选项 1
    </label>
</div>
<div class="radio">
    <label>
        <input type="radio" name="optionsRadios" id="optionsRadios2" value="option2">选项 2 - 选择它将会取消选择选项 1
    </label>
</div>
<label for="name">内联的复选框和单选按钮的实例</label>
<div>
    <label class="checkbox-inline">
        <input type="checkbox" id="inlineCheckbox1" value="option1"> 选项 1
    </label>
    <label class="checkbox-inline">
        <input type="checkbox" id="inlineCheckbox2" value="option2"> 选项 2
    </label>
    <label class="checkbox-inline">
        <input type="checkbox" id="inlineCheckbox3" value="option3"> 选项 3
    </label>
    <label class="radio-inline">
        <input type="radio" name="optionsRadiosinline" id="optionsRadios3" value="option1" checked> 选项 1
    </label>
    <label class="radio-inline">
        <input type="radio" name="optionsRadiosinline" id="optionsRadios4"  value="option2"> 选项 2
    </label>
</div>

</body>
</html>
Copy after login

The running results are as follows:

What are the ways to layout Bootstrap forms? How to create Bootstrap form layout (with code)


Select box (Select)

When you want the user to choose from multiple options, but by default only When selecting an option, a selection box is used.

Use 后使用 .help-block。下面的实例演示了这点：

实例：

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"> 
    <title>Bootstrap 实例 - 表单帮助文本</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">  
    <script src="https://cdn.bootcss.com/jquery/2.1.1/jquery.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>

<form role="form">
    <span>帮助文本实例</span>
    <input class="form-control" type="text" placeholder="">
    <span class="help-block">一个较长的帮助文本块，超过一行，
        需要扩展到下一行。本实例中的帮助文本总共有两行。</span>
</form>

</body>
</html>
Copy after login

运行结果如下：

What are the ways to layout Bootstrap forms? How to create Bootstrap form layout (with code)



    相关文章推荐：

Bootstrap全局CSS样式之表单_html/css_WEB-ITnose

Bootstrap每天必学之栅格系统（布局）_javascript技巧




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