Fixed #20567 - Documented BoundField.id_for_label.

    >>> print(bound_form['subject'].value())

    hi

.. attribute:: BoundField.id_for_label

Use this property to render the ID of this field. For example, if you are

manually constructing a ``<label>`` in your template (despite the fact that

:meth:`~BoundField.label_tag` will do this for you):

.. code-block:: html+django

    <label for="{{ form.my_field.id_for_label }}">...</label>{{ my_field }}

By default, this will be the field's name prefixed by ``id_``

("``id_my_field``" for the example above). You may modify the ID by setting

:attr:`~django.forms.Widget.attrs` on the field's widget. For example,

declaring a field like this::

    my_field = forms.CharField(widget=forms.TextInput(attrs={'id': 'myFIELD'}))

and using the template above, would render something like:

.. code-block:: html

    <label for="myFIELD">...</label><input id="myFIELD" type="text" name="my_field" />

.. _binding-uploaded-files:

Binding uploaded files to a form

    <tr><th>Url:</th><td><input type="url" name="url"/></td></tr>

    <tr><th>Comment:</th><td><input type="text" name="comment" size="40"/></td></tr>

You can also set the HTML ``id`` using :attr:`~Widget.attrs`. See

:attr:`BoundField.id_for_label` for an example.

.. _styling-widget-classes:

Styling widget classes