Question

public class StoreController : Controller
{
    // GET: /Store/

   ProductsStoreEntities storeDB = new ProductsStoreEntities();
   public ActionResult Index()
   {
       var items = storeDB.item.ToList();
       return PartialView(items);
   }

索引视图

model IEnumerable<MvcProductsStore.Models.Item>
@{
    ViewBag.Title = "Store";
}

<h3>Browse Products:</h3>


<p>
    Select from @Model.Count()
    Products:
</p>

<ul>
    @foreach (var item in Model)
    {
        <li>@Html.ActionLink(item.IName,"Browse", new { item = item.IName })</li>
    }
</ul>

示例数据

namespace MvcProductsStore.Models
{
    public class SampleData : DropCreateDatabaseIfModelChanges<ProductsStoreEntities>
    {
        protected override void Seed(ProductsStoreEntities context)
        {
            var items = new List<Item>
             {
                 new Item {ItemId = 1000, IName = "Patches"},
                 new Item {ItemId = 2000,IName = "Jewelry"},
                 new Item {ItemId = 3000, IName = "Wood Working"}   
             };
             items.ForEach(s => context.item.Add(s));
        }
    }

模型

namespace MvcProductsStore.Models
{
    public class ProductsStoreEntities : DbContext
    {
        public DbSet<Product> products { get; set; }
        public DbSet<Item> item { get; set; }
        protected override void OnModelCreating(System.Data.Entity.DbModelBuilder modelBuilder)
        {
            modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
        }
    }
}

没有真正返回错误，但是当我点击商店时它告诉我从0项中选择。因此，不是拿起项目列表，而是计数为0。

Answer 1

您没有在种子方法之后保存数据库上下文对象所以你应该添加

context.SaveChanges();

样本数据部分中的

种子方法

Answer 2

请更改返回View（）而不是PartialView（）。

public class StoreController : Controller
{
    // GET: /Store/

   ProductsStoreEntities storeDB = new ProductsStoreEntities();
   public ActionResult Index()
   {
       var items = storeDB.item.ToList();
       return View(items);
   }

MVC 3返回0的计数

2 个答案: