symfony - Symfony2 - Twig : Set the default value in the dropdownlist -

i have form in twig template. 1 of form fields dropdownlist created entity in form builder.

i set default value in dropdown list, id 28 example.

i don't know how in twig.

i tryed this:

{{ form_widget(form.type, {value: 28 } ) }}

but nothing changed, still have firs value default.

i know can set default value in formtype class creating form builder, looking twig way, seems me more elegant create object in formtype class.

ok, found mistake, code should be:

{{ form_widget(form.type, {value: "28" } ) }}

i forgot quotes id. , also, there need ctrl + f5 refresh page , see difference.

Detect