public NewAdVm GetCarForDropDownList()
        {
            var cars = _adRepo.GetAllCars().ToList();


            List <SelectListItem> carBrandList = new List <SelectListItem>();
            List <SelectListItem> carModelList = new List <SelectListItem>();

            if (cars != null)
            {
                foreach (var car in cars.Select(t => t.CarBrand).Distinct())
                {
                    carBrandList.Add(new SelectListItem
                    {
                        Text  = car.Brand,
                        Value = car.Id.ToString(),
                    });
                }

                //foreach (var car in cars)
                //{
                //    carModelList.Add(new SelectListItem
                //    {
                //        Text = car.Model,
                //        Value = car.Id.ToString()
                //    });

                //}

                var dropDownList = new NewAdVm()
                {
                    CarBrandList = carBrandList,
                    CarModelList = carModelList
                };

                return(dropDownList);
            }
            return(new NewAdVm());
        }