Cats.Areas.EarlyWarning.Controllers.RequestController.GetCascadedAdminUnits C# (CSharp) Méthode

        public JsonResult GetCascadedAdminUnits(int regionID, int programId = -1)
        {
            if (programId != -1)
            {
                var cascadeAdminUnitAllRegions = (from region in _commonService.GetAminUnits(m => m.AdminUnitTypeID == 2)

                                                  select new
                                                  {
                                                      RegionID = region.AdminUnitID,
                                                      RegionName = region.Name,

                                                      zones = from zone in _commonService.GetAminUnits(z => z.ParentID == region.AdminUnitID)
                                                              select new
                                                              {
                                                                  ZoneID = zone.AdminUnitID,
                                                                  ZoneName = zone.Name,

                                                                  Woredas = from woreda in _commonService.GetAminUnits(m => m.ParentID == zone.AdminUnitID)
                                                                            select new
                                                                            {
                                                                                WoredaID = woreda.AdminUnitID,
                                                                                WoredaName = woreda.Name,
                                                                                fdps = from fdp in _commonService.GetFDPs(woreda.AdminUnitID)
                                                                                       select new
                                                                                       {
                                                                                           FDPID = fdp.FDPID,
                                                                                           FDPName = fdp.Name
                                                                                       }
                                                                            }

                                                              }
                                                  }

                  );
                return Json(cascadeAdminUnitAllRegions, JsonRequestBehavior.AllowGet);
            }
            else
            {
                var cascadeAdminUnit = (from zone in _commonService.GetAminUnits(m => m.AdminUnitTypeID == 3 && m.ParentID == regionID)

                                        select new
                                        {
                                            ZoneID = zone.AdminUnitID,
                                            ZoneName = zone.Name,
                                            Woredas = from woreda in _commonService.GetAminUnits(m => m.ParentID == zone.AdminUnitID)
                                                      select new
                                                      {
                                                          WoredaID = woreda.AdminUnitID,
                                                          WoredaName = woreda.Name,
                                                          fdps = from fdp in _commonService.GetFDPs(woreda.AdminUnitID)
                                                                 select new
                                                                 {
                                                                     FDPID = fdp.FDPID,
                                                                     FDPName = fdp.Name
                                                                 }
                                                      }

                                        }

                   );
                return Json(cascadeAdminUnit, JsonRequestBehavior.AllowGet);
            }
        }