Beispiel #1
0
        public async Task <IActionResult> Edit(int id, [Bind("ImageID,title,ImageName")] ImageModel imageModel)
        {
            if (id != imageModel.ImageID)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(imageModel);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!ImageModelExists(imageModel.ImageID))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            return(View(imageModel));
        }
        public async Task <IActionResult> Edit(int id, [Bind("ImageID,title,ImageName,ImageFile")] ImageModel imageModel)
        {
            if (id != imageModel.ImageID)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    if (imageModel.ImageFile != null)
                    {
                        //delete image form wwwroot/image
                        var ImagePath = Path.Combine(_HostEnvironment.WebRootPath, "Images", imageModel.ImageName);

                        if (System.IO.File.Exists(ImagePath))
                        {
                            System.IO.File.Delete(ImagePath);

                            //save image to wwwroot folder
                            string wwwRootPath = _HostEnvironment.WebRootPath;

                            string Filename = Path.GetFileNameWithoutExtension(imageModel.ImageFile.FileName);

                            string extension = Path.GetExtension(imageModel.ImageFile.FileName);

                            Filename = Filename + DateTime.Now.ToString("yymmssfff") + extension;

                            imageModel.ImageName = Filename;

                            string path = Path.Combine(wwwRootPath + "/Images/" + Filename);

                            using (var fileStream = new FileStream(path, FileMode.Create))
                            {
                                await imageModel.ImageFile.CopyToAsync(fileStream);
                            }
                        }
                    }
                    //update record
                    _context.Update(imageModel);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!ImageModelExists(imageModel.ImageID))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            return(View(imageModel));
        }