public async Task <IActionResult> Edit(Yayin yayin, IFormFile image)
        {
            if (image != null)
            {
                if (System.IO.File.Exists(_env.WebRootPath + yayin.ImageUrl))
                {
                    System.IO.File.Delete(_env.WebRootPath + yayin.ImageUrl);
                }
                if (image == null || image.Length == 0)
                {
                    return(Content("not image selected"));
                }

                var path = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot/image/Yayincilar", image.FileName);

                using (var stream = new FileStream(path, FileMode.Create))
                {
                    await image.CopyToAsync(stream);
                }

                yayin.ImageUrl = "/image/Yayincilar/" + image.FileName;
            }

            _yayinService.Update(yayin);
            return(RedirectToAction("Index"));
        }