public IActionResult EditPOST(int?id) { if (id == null) { return(NotFound()); } var menuItemVm = menuItemAndSubCListAndCListVm.MenuItem; menuItemVm.SubCategoryId = Convert.ToInt32(Request.Form["SubCategoryId"].ToString()); if (!ModelState.IsValid) { return(View(menuItemAndSubCListAndCListVm)); } string webRootPath = _webHostEnvironment.WebRootPath; var files = HttpContext.Request.Form.Files; if (files.Count > 0) { var uniqueNameOfString = Math.Round((DateTime.Now - DateTime.MinValue).TotalMilliseconds).ToString(); //New image has been uploaded var uploads = Path.Combine(webRootPath, "images"); var extension_new = Path.GetExtension(files[0].FileName); //Delete original file var imagePath = Path.Combine(webRootPath, menuItemVm.Image.TrimStart('\\')); if (System.IO.File.Exists(imagePath)) { System.IO.File.Delete(imagePath); } //upload new file using (var filesStream = new FileStream(Path.Combine(uploads, uniqueNameOfString + extension_new), FileMode.Create)) { files[0].CopyTo(filesStream); } menuItemVm.Image = @"\images\" + uniqueNameOfString + extension_new; } var menuItemDto = _viewModelMapper.Map(menuItemVm); _menuItemManager.EditMenuItem(menuItemDto); return(RedirectToAction(nameof(Index))); }