Question

我目前正在开展一个模拟自行车商店的项目。但是，我遇到了几个问题：

1。）由于某种原因，Order.Create中的Name未传递给Order。为什么是这样？ 2.）我希望Order.Create中的dropdownList通过JQuery从SelectList中的商店中删除任何Order。我该怎么做呢？

代码如下。如果您有任何问题/文件请求/批评，请随意提问。

Order.Create：

<div class="form-group">
            @for(int i = 0; i < Model.Inventory.Count; i++)
            {
                <div class="col-md-10">
                    @Html.HiddenFor(m => m.Inventory[i].Name)
                    @Html.HiddenFor(m => m.Inventory[i].Id)
                    @Html.HiddenFor(m => m.Inventory[i].Price)
                    @Html.CheckBoxFor(m => m.Inventory[i].IsSelected)
                    @Html.LabelFor(m => m.Inventory[i].IsSelected, Model.Inventory[i].Name)
                    @Html.DisplayFor(m => m.Inventory[i].Price)
                </div>
            }
            <div class="col-md-10">
                @Html.LabelFor(m => m.Name)
                @Html.TextBoxFor(m => m.Name)
                @Html.LabelFor(m => m.PaymentMethod)
                @Html.TextBoxFor(m => m.PaymentMethod)
                @Html.LabelFor(model => model.StoreId, "StoreId", htmlAttributes: new { @class = "control-label col-md-2" })
                @Html.DropDownList("StoreId", null, htmlAttributes: new { @class = "form-control" })
                @Html.ValidationMessageFor(model => model.StoreId, "", new { @class = "text-danger" })
            </div>
            </div>

库存模型：

public class Inventory
    {
        public int Id { get; set; }

        public string SerialNumber { get; set; }

        public virtual Store Store { get; set; }
        public int? StoreId { get; set; }

        public string Model { get; set; }

        public string Description { get; set; }

        public Decimal InventoryCost { get; set; }

        public Decimal RecSalePrice { get; set; }

        public Decimal SalePrice { get; set; }

        public string PaymentMethod { get; set; }

        public virtual BikeCategory Category { get; set; }
        public int? CategoryId { get; set; }

商店模式：

public class Store
    {
        public int Id { get; set; }

        public string Name { get; set; }

        public string City { get; set; }

        public string State { get; set; }

        public int Zip { get; set; }

        public string Address { get; set; }

        public string Phone { get; set; }

        public string Hours { get; set; }

        public virtual List<Employee> Employees { get; set; }

        public virtual List<Inventory> StoreInventory { get; set; }

        public Store() 
        {
            Name = "";
            Employees=new List<Employee>();
            StoreInventory = new List<Inventory>();
        }

订单型号：

 public class Order
    {
        public Order()
        {
            OrderedItems = new List<Inventory>();
        }

        public string CustomerName { get; set; } //FROM CONTROLLER User.Identity.Name

        public virtual List<Inventory> OrderedItems { get; set; }
        //public virtual List<Account> Accounts { get; set; }
        public DateTime? OrderDate { get; set; }

        public DateTime? PickupDate { get; set; }

         [Key, DatabaseGenerated(System.ComponentModel.DataAnnotations.Schema.DatabaseGeneratedOption.Identity)]
        public int OrderNumber { get; set; }

        public virtual Store StoreOrderedFrom { get; set; }
        public int? StoreId { get; set; }

        public Decimal TotalCost { get; set; }

        public string PaymentMethod { get; set; }

OrderVM型号：

public class OrderVM


     {
            public virtual Store Store { get; set; }
            public int? StoreId { get; set; }
            public string Name { get; set; }
            public string PaymentMethod { get; set; }
            public List<InventoryVM> Inventory { get; set; }
        }

InventoryVM模型：

public class InventoryVM
    {
        public decimal Price { get; set; }
        public int Id { get; set; }
        public string Name { get; set; }
        public bool IsSelected { get; set; }
        public virtual Store Store { get; set; }
        public int? StoreId { get; set; }
    }

OrderedItemModel：

OrderController：

public class OrdersController : Controller
    {
        private BikeStoreContext db = new BikeStoreContext();

        // GET: Orders

        public ActionResult Index()
        {
            return View(db.Orders.ToList());
        }

        // GET: Orders/Details/5
        public ActionResult Details(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Order order = db.Orders.Find(id);
            if (order == null)
            {
                return HttpNotFound();
            }
            return View(order);
        }

        // GET: Orders/Create
        public ActionResult Create()
        {
            var inventory = db.StoreInventory;
            OrderVM model = new OrderVM
            {
                Inventory = inventory.Select(i => new InventoryVM { Id = i.Id, Name = i.Model, Price=i.RecSalePrice}).ToList()

            };
            ViewBag.StoreId= new SelectList(db.Stores, "Id", "Name");

            return View(model);
        }

        // POST: Orders/Create
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Create([Bind(Include = "PaymentMethod, Inventory")]OrderVM model)
        {
            var Order = new Order
            {

                CustomerName = model.Name,
                OrderDate = DateTime.Now,
                PaymentMethod = model.PaymentMethod,
                TotalCost=0,
                PickupDate=DateTime.Now.AddDays(7),
                StoreOrderedFrom=db.Stores.Find(model.StoreId),
                StoreId=model.StoreId


            };

            IEnumerable<int> selectedItems = model.Inventory.Where(i => i.IsSelected).Select(i => i.Id);
            foreach(var item in selectedItems)
            {
                var orderItem = new OrderedItem { OrderId = Order.OrderNumber, InventoryId = item };
                db.OrderedItems.Add(orderItem);
                Order.TotalCost = Order.TotalCost + model.Inventory.Find(i => i.Id == item).Price;
                db.StoreInventory.Remove(db.StoreInventory.Find(item));
            }
            db.Orders.Add(Order);
            db.SaveChanges();
            model.Inventory.RemoveAll(i => i.IsSelected);
            db.SaveChanges();
            ViewBag.StoreId = new SelectList(db.Stores, "Id", "Name", model.StoreId);
            return View(model);

        }

        // GET: Orders/Edit/5
        public ActionResult Edit(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Order order = db.Orders.Find(id);
            if (order == null)
            {
                return HttpNotFound();
            }
            return View(order);
        }

        // POST: Orders/Edit/5
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Edit([Bind(Include = "OrderNumber,CustomerName,OrderDate,PickupDate,TotalCost,PaymentMethod")] Order order)
        {
            if (ModelState.IsValid)
            {
                db.Entry(order).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(order);
        }

        // GET: Orders/Delete/5
        public ActionResult Delete(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Order order = db.Orders.Find(id);
            if (order == null)
            {
                return HttpNotFound();
            }
            return View(order);
        }

        // POST: Orders/Delete/5
        [HttpPost, ActionName("Delete")]
        [ValidateAntiForgeryToken]
        public ActionResult DeleteConfirmed(int id)
        {
            Order order = db.Orders.Find(id);
            db.Orders.Remove(order);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                db.Dispose();
            }
            base.Dispose(disposing);
        }
    }

Answer 1

1）您的[Bind(Include = "PaymentMethod, Inventory")]中没有姓名，因此被排除在外。

模型属性未传递给Razor View

1 个答案: