SDK 3 : how to acces non displayed form variable

[anakin59490]

Hi,

I need to use variable retrieved from task-edit process :

request :

response that contains variable i need to use:

This variable "wfvd_nomService" is not displayed on the form...

I use jQuery to manipulate displayed form variable ex : 

$('#page_x002e_data-form_x002e_task-edit_x0023_default_prop_wfvd_nomPatient').val(splits[0].trim());

but I don't find how to use and manipulate  json variables that are not displayed on form

Thank you

[anakin59490]

OK i add it on the form as hidden !