Profile: romanB-3

Problem: I have added some code that uses jQuery but it doesn't work.

$(function() {
  $('#roleutilisateur').change(function(){
    $('.roles').hide();
    $('#' + $(this).val()).show();
  });
});

Solution: When using Views, the namespace for jQuery is "jQuery" instead of "$". If you use the standard $ namespace, you may see an error in the console like:

Uncaught TypeError: $ is not a function

Rewrite your code to use jQuery instead of $ and check for errors:

jQuery(function() {
  jQuery('#roleutilisateur').change(function(){
    jQuery('.roles').hide();
    jQuery('#' + jQuery(this).val()).show();
  });
});

Relevant Documentation: https://toolset.com/documentation/user-guides/adding-custom-javascript-views/

Problem:
Want to sort a table in a view based on a column filled by several fields, based on two custom post type’s field.

Solution:
It might be possible using coding but I it would be little too complex. In our API we don't have any documented hook for wpv-heading:
https://toolset.com/documentation/programmer-reference/views-filters/

So if you really want to try it out, you need to search through Views code / files to find the hook OR To get to know about which Views Hooks are executed on the page (frontend or backend), I suggest you a good way to detect those, please use following plugin & its addon:
- Debug Bar: https://wordpress.org/plugins/debug-bar/
- Debug Bar Actions and Filters Addon: https://wordpress.org/plugins/debug-bar-actions-and-filters-addon/

Our doc explains more about this strategy (section: Troubleshooting): https://toolset.com/documentation/programmer-reference/toolset-hooks/