public async Task <IActionResult> AddImage(PropertySellerImageViewModel viewModel)
        {
            if (ModelState.IsValid)
            {
                var path = string.Empty;

                if (viewModel.ImageFile != null)
                {
                    path = await _imageHelper.UploadImageAsync(viewModel.ImageFile);
                }

                var propertySellerImage = new PropertySellerImage
                {
                    ImageUrl       = path,
                    PropertySeller = await _dataContext.PropertySellers.FindAsync(viewModel.Id)
                };

                _dataContext.PropertySellerImages.Add(propertySellerImage);
                await _dataContext.SaveChangesAsync();

                return(RedirectToAction("DetailsProperty", "Sellers", new { id = viewModel.Id }));
            }

            return(View(viewModel));
        }
        public async Task <IActionResult> AddImage(int?id)
        {
            if (id == null)
            {
                return(NotFound());
            }

            var propertySeller = await _dataContext.PropertySellers.FindAsync(id.Value);

            if (propertySeller == null)
            {
                return(NotFound());
            }

            var model = new PropertySellerImageViewModel
            {
                Id = propertySeller.Id
            };

            return(View(model));
        }