How to delete initial field value when user clicks on respective box?

Question

I want to know if its possible writing some code which will delete an initial value from a form when the user clicks on the corresponding form (described in the following example)?

class example(forms.Form):
    name = forms.CharField()
    email = forms.EmailField()
    descr = forms.CharField(initial='Please insert a relevant description ...')

I dont want to use the help_text attribute.

PS: For a better understanding I could make an analogy with java onclick event

score 0 · Answer 1 · answered Nov 04 '11 at 16:28

0

Because it's a webservice you'll have to use javascript. If you use jQuery, something like this:

$(document).ready(function(){
    $('#id_descr').one('click', function(){
        $(this).val('');
    });
});

answered Nov 04 '11 at 16:28

Will

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score 0 · Answer 2 · edited May 23 '17 at 11:44

0

for the backend part, have a look at this answer. For the frontend, you may wish to add a html5 shiv to get placeholders in legacy browsers

edited May 23 '17 at 11:44

Community

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answered Nov 04 '11 at 16:29

second

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score 0 · Accepted Answer · answered Nov 04 '11 at 17:32

One way is to use HTML5's placeholder attribute directly from Django:

descr = forms.CharField(widget=forms.TextInput(attrs={
    'placeholder': 'Please insert a relevant description ...'}))

The unique constraint is that it is not yet supported by Internet Explorer.

How to delete initial field value when user clicks on respective box?

3 Answers3