public ActionResult AddItem(Item item) { var list = new ItemDataAccess().FindAll <Item>(); item.Id = list.Count == 0 ? 1 : list.Last().Id + 1; item.Name = Request.Form["Name"]; item.Description = Request.Form["Description"]; item.Cost = double.Parse(Request.Form["Cost"]); item.NT = int.Parse(Request.Form["NT"]); item.Weight = double.Parse(Request.Form["Weight"]); item.Formula = Request.Form["Formula"]; new ItemDataAccess().InsertOne(item); return(RedirectToAction("Main", "Admin")); }