// KOD NA OBRAZEK:

<img src="data: image/png;base64, @Convert.ToBase64String(Model.UserPost.ImageModel.ImageData, 0, Model.UserPost.ImageModel.ImageData.Length)"/><br />

// WRZUCAM DO BAZY OBRAZEK:

        [HttpPost]
        public ActionResult UserProfile (ImageModel img)
        {
            var loggedUserId = (Session[SessionConstants.UserProfileSession] as UserModel).UserId;

            if (img.File.ContentLength > (2*1024*1024))
            {
                ModelState.AddModelError("CustomError", "File size must be less than 2MB");
                return View();
            }
            //if (!(img.File.ContentType == "image/jpg" && img.File.ContentType == "image/gif"))
            //{
            //    ModelState.AddModelError("CustomError", "File type allowed: jpeg and gif");
            //    return View();
            //}

            img.FileName = img.File.FileName;
            img.ImageSize = img.File.ContentLength;

            byte[] data = new byte[img.File.ContentLength];
            img.File.InputStream.Read(data, 0, img.File.ContentLength);

            img.ImageData = data;

            _userService.AddImageUser(new ImagesDto(loggedUserId, img.FileName, img.ImageSize ?? default(int), img.ImageData));

            return RedirectToAction("UserProfile");
        }

// KOD NA WYWALANIE ZNACZNIKÓW

                // HtmlFormatting
                String[] array = new String[] { "b", "em", "i", "small", "strong", "sub", "sup", "ins", "del", "mark" };
                List<string> whitelist = new List<string>(array);

                var allformats = _adminService.GetHtmlFormats();
                var formatsViewModel = allformats.Select(x => new HtmlFormatsModel(x)).ToList();

                for (int i=0; i< array.Length; i++)
                {
                    foreach(var item in formatsViewModel)
                    {
                        if (array[i] == item.formatName)
                        {
                            whitelist.Remove(item.formatName);
                        }
                    }
                }

                foreach (var removeFormat in whitelist)
                {
                    string removeOpenFormat = "<" + removeFormat + ">";
                    string removeCloseFormat = "</" + removeFormat + ">";

                    pst.Content = pst.Content.Replace(removeOpenFormat, "").Replace(removeCloseFormat, "");
                }