public void LoadDistrictDropDownViewBag(long id) { try { var districts = _dataManager.FindBy <District>(x => x.City.Id == id).ToList(); var list = new SelectList(districts, "Id", "Name");//cities.Select(x => new SelectListItem { Value = x.Id.ToString(), Text = x.Name }).ToList(); ViewBag.Districts = list; } catch (Exception exception) { throw exception;//new Exception(exception.Message); } }