在Django的form中使用CSS进行设计的方法
修改form的显示的最快捷的方式是使用CSS。 尤其是错误列表,可以增强视觉效果。自动生成的错误列表精确的使用``
- ``,这样,我们就可以针对它们使用CSS。 下面的CSS让错误更加醒目了:
<style type="text/css"> ul.errorlist { margin: 0; padding: 0; } .errorlist li { background-color: red; color: white; display: block; font-size: 10px; margin: 0 0 3px; padding: 4px 5px; } </style>
虽然,自动生成HTML是很方便的,但是在某些时候,你会想覆盖默认的显示。 {{form.as_table}}和其它的方法在开发的时候是一个快捷的方式,form的显示方式也可以在form中被方便地重写。
每一个字段部件(,
<html> <head> <title>Contact us</title> </head> <body> <h1 id="Contact-us">Contact us</h1> {% if form.errors %} <p style="color: red;"> Please correct the error{{ form.errors|pluralize }} below. </p> {% endif %} <form action="" method="post"> <div class="field"> {{ form.subject.errors }} <label for="id_subject">Subject:</label> {{ form.subject }} </div> <div class="field"> {{ form.email.errors }} <label for="id_email">Your e-mail address:</label> {{ form.email }} </div> <div class="field"> {{ form.message.errors }} <label for="id_message">Message:</label> {{ form.message }} </div> <input type="submit" value="Submit"> </form> </body> </html>
{{ form.message.errors }} 会在
- 里面显示,如果字段是合法的,或者form没有被绑定,就显示一个空字符串。 我们还可以把 form.message.errors 当作一个布尔值或者当它是list在上面做迭代, 例如:
<div class="field{% if form.message.errors %} errors{% endif %}"> {% if form.message.errors %} <ul> {% for error in form.message.errors %} <li><strong>{{ error }}</strong></li> {% endfor %} </ul> {% endif %} <label for="id_message">Message:</label> {{ form.message }} </div>
在校验失败的情况下, 这段代码会在包含错误字段的div的class属性中增加一个”errors”,在一个有序列表中显示错误信息。

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