public ActionResult GridData(int?state_id, string sidx, string sord, int page, int rows, string filters)
        {
            User user = new UsersServices().GetByUserName(User.Identity.Name.ToString());

            if (state_id != null)
            {
                object resultado = _locationService.RequestList((int)user.Company_Id, state_id.Value, sidx, sord, page, rows, filters);
                return(Json(resultado));
            }
            else
            {
                return(null);
            }
        }