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          Widgets

          A widget is Django’s representation of a HTML input element. The widget handles the rendering of the HTML, and the extraction of data from a GET/POST dictionary that corresponds to the widget.

          Django provides a representation of all the basic HTML widgets, plus some commonly used groups of widgets:

          class TextInput
          Text input: <input type='text' ...>
          class PasswordInput

          Password input: <input type='password' ...>

          Takes one optional argument:

          render_value
          Determines whether the widget will have a value filled in when the form is re-displayed after a validation error (default is True).
          class HiddenInput
          Hidden input: <input type='hidden' ...>
          class MultipleHiddenInput
          Multiple <input type='hidden' ...> widgets.
          class FileInput
          File upload input: <input type='file' ...>
          class DateInput
          New in Django 1.1: Please, see the release notes

          Date input as a simple text box: <input type='text' ...>

          Takes one optional argument:

          format
          The format in which this field’s initial value will be displayed.

          If no format argument is provided, the default format is '%Y-%m-%d'.

          class DateTimeInput
          New in Django 1.0: Please, see the release notes

          Date/time input as a simple text box: <input type='text' ...>

          Takes one optional argument:

          format
          The format in which this field’s initial value will be displayed.

          If no format argument is provided, the default format is '%Y-%m-%d %H:%M:%S'.

          class TimeInput

          Time input as a simple text box: <input type='text' ...>

          Takes one optional argument:

          format
          The format in which this field’s initial value will be displayed.

          If no format argument is provided, the default format is '%H:%M:%S'.

          Changed in Django 1.1: The format argument was not supported in Django 1.0.
          class Textarea
          Text area: <textarea>...</textarea>
          class CheckboxInput

          Checkbox: <input type='checkbox' ...>

          Takes one optional argument:

          check_test
          A callable that takes the value of the CheckBoxInput and returns True if the checkbox should be checked for that value.
          class Select

          Select widget: <select><option ...>...</select>

          Requires that your field provides choices.

          class NullBooleanSelect
          Select widget with options ‘Unknown’, ‘Yes’ and ‘No’
          class SelectMultiple

          Select widget allowing multiple selection: <select multiple='multiple'>...</select>

          Requires that your field provides choices.

          class RadioSelect

          A list of radio buttons:

          <ul>
          <li><input type='radio' ...></li>
          ...
          </ul>

          Requires that your field provides choices.

          class CheckboxSelectMultiple

          A list of checkboxes:

          <ul>
          <li><input type='checkbox' ...></li>
          ...
          </ul>
          class MultiWidget
          Wrapper around multiple other widgets
          class SplitDateTimeWidget

          Wrapper around two widgets: DateInput for the date, and TimeInput for the time.

          Takes two optional arguments, date_format and time_format, which work just like the format argument for DateInput and TimeInput.

          Changed in Django 1.1: The date_format and time_format arguments were not supported in Django 1.0.
          class SelectDateWidget

          Wrapper around three select widgets: one each for month, day, and year. Note that this widget lives in a separate file from the standard widgets.

          from django.forms.extras.widgets import SelectDateWidget

          date = forms.DateField(widget=SelectDateWidget())

          Specifying widgets

          Form.widget

          Whenever you specify a field on a form, Django will use a default widget that is appropriate to the type of data that is to be displayed. To find which widget is used on which field, see the documentation for the built-in Field classes.

          However, if you want to use a different widget for a field, you can - just use the 'widget' argument on the field definition. For example:

          from django import forms

          class CommentForm(forms.Form):
          name = forms.CharField()
          url = forms.URLField()
          comment = forms.CharField(widget=forms.Textarea)

          This would specify a form with a comment that uses a larger Textarea widget, rather than the default TextInput widget.

          Customizing widget instances

          When Django renders a widget as HTML, it only renders the bare minimum HTML - Django doesn't add a class definition, or any other widget-specific attributes. This means that all 'TextInput' widgets will appear the same on your web page.

          If you want to make one widget look different to another, you need to specify additional attributes for each widget. When you specify a widget, you can provide a list of attributes that will be added to the rendered HTML for the widget.

          For example, take the following simple form:

          class CommentForm(forms.Form):
          name = forms.CharField()
          url = forms.URLField()
          comment = forms.CharField()

          This form will include three default TextInput widgets, with default rendering - no CSS class, no extra attributes. This means that the input boxes provided for each widget will be rendered exactly the same:

          >>> f = CommentForm(auto_id=False)
          >>> f.as_table()
          <tr><th>Name:</th><td><input type="text" name="name" /></td></tr>
          <tr><th>Url:</th><td><input type="text" name="url"/></td></tr>
          <tr><th>Comment:</th><td><input type="text" name="comment" /></td></tr>

          On a real web page, you probably don't want every widget to look the same. You might want a larger input element for the comment, and you might want the 'name' widget to have some special CSS class. To do this, you use the attrs argument when creating the widget:

          Widget.attrs

          For example:

          class CommentForm(forms.Form):
          name = forms.CharField(
          widget=forms.TextInput(attrs={'class':'special'}))
          url = forms.URLField()
          comment = forms.CharField(
          widget=forms.TextInput(attrs={'size':'40'}))

          Django will then include the extra attributes in the rendered output:

          >>> f = CommentForm(auto_id=False)
          >>> f.as_table()
          <tr><th>Name:</th><td><input type="text" name="name" class="special"/></td></tr>
          <tr><th>Url:</th><td><input type="text" name="url"/></td></tr>
          <tr><th>Comment:</th><td><input type="text" name="comment" size="40"/></td></tr>
          posted on 2009-09-27 15:35 seal 閱讀(3240) 評論(2)  編輯  收藏 所屬分類: Python

          評論

          # re: django form的widgets類型列表 2014-06-27 17:49 HJWAJ
          你這么一貼文檔,你自己還會再看第二遍么。。  回復(fù)  更多評論
            

          # re: django form的widgets類型列表 2015-12-18 13:51 企鵝
          額請問請問其味無窮而且  回復(fù)  更多評論
            

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