Overriding Size of Django Admin Multi-select Widget

Question

Newbie Django question: I\'d like the Django admin to display more rows of choices in the multi-select widget. I have an extremely long list to select from and the default 4

Answer 1

If you have a long select that will keep growing, I recommend to use an autocomplete widget.

Anyway, you could:

1. Create a ModelForm, for the model in question

2. Override the default widget, for the field in question,

3. Set widget's size attribute to your needs

4. Enable that form in ModelAdmin, for example

   class YourModelForm(forms.ModelForm):
       class Meta:
           model = YourModel
           widgets = {
               'your_field': forms.SelectMultiple(attrs={'size': 12})
           }
   
   
   class YourModelAdmin(admin.ModelAdmin):
       form = YourModelForm