public JsonResult GrupoOperaciones(int nTipoPer)
        {
            MenuViewModel oMenuVM = new MenuViewModel();
            PersonaLN oPersonaLN = new PersonaLN();
            object data = null;

            if (nTipoPer == 2)
            {
                data = oPersonaLN.getAllUsers();
            }
            else if (nTipoPer == 1)
            {
                data = Roles.GetAllRoles();
            }

            return Json(JsonConvert.SerializeObject(data));
        }