Question

在视图中创建我想要添加新产品。我需要从下拉列表中选择类别名称。问题是，我在表格中只添加了类别ID。以及我如何添加和命名类别？

构建我的数据库：

表品牌：idbrand，名称。

表格制作：idbrand，namebrand，idmake，name，price，urlmake。

我执行以下操作：

    // GET: /ShopManager/Create

    public ActionResult Create()
    {
        ViewBag.BrandID = new SelectList(db.Brand, "BrandID", "Name");
        return View();
    } 

    //
    // POST: /ShopManager/Create

    [HttpPost]
    public ActionResult Create(Make make)
    {
        if (ModelState.IsValid)
        {
            db.Make.AddObject(make);
            db.SaveChanges();
            return RedirectToAction("Index");  
        }

        ViewBag.BrandID = new SelectList(db.Brand, "BrandID", "Name", make.BrandID);
        return View(make);
    }



  @using (Html.BeginForm()) {
   @Html.ValidationSummary(true)
   <fieldset>
    <legend>Марка телефона</legend>

    <div class="editor-label">
        @Html.LabelFor(model => model.BrandID, "Бренд")
    </div>
    <div class="editor-field">
        @Html.DropDownList("BrandID", String.Empty)
        @Html.ValidationMessageFor(model => model.BrandID)
    </div>

    <div class="editor-label">
        @Html.LabelFor(model => model.Name, "Марка телефона")
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.Name)
        @Html.ValidationMessageFor(model => model.Name)
    </div>

    <div class="editor-label">
        @Html.LabelFor(model => model.Price, "Цена")
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.Price)
        @Html.ValidationMessageFor(model => model.Price)
    </div>

    <div class="editor-label">
        @Html.LabelFor(model => model.UrlMake, "Изображение")
    </div>
    <div class="editor-field">
        @Html.EditorFor(model => model.UrlMake)
        @Html.ValidationMessageFor(model => model.UrlMake)
    </div>

    <p>
        <input type="submit" value="Создать" />
    </p>
  </fieldset>


  <div>
  @Html.ActionLink("Back to List", "Index")
  </div>

我如何在表中添加品牌ID和品牌名称（类别名称）？

Answer 1

由于您拥有品牌表，因此无需在Make中存储品牌名称，您可以通过简单的连接获得。无论如何，如果您真的想在创建中执行此操作，您可以将其设置为以下代码

make.NameBrand = db.Brand.Where(b => b.idbrand == make.idbrand).SingleOrDefault().namebrand;

如何向两者添加数据：来自一个Html.LabelFor的类别ID和名称类别？

1 个答案: