Question

在界定“

    public class Product
    {
        public int ProductId { get; set; }
        public string Name { get; set; }
        public Category Category { get; set; }
    }

    public class Category
    {
        public int CategoryId { get; set; }
        public string Name { get; set; }
        public ICollection<Product> Products { get; set; }
    }

我能否不把导航财产列入第13类?

Answer 1

If you just want it infered by code first convention then yes you need both on either side. I d also make the collection "virtual" to support lazy loading.

在建立模型时,你可以使用流体组合来建立这一模型。这将是这样的事情。

modelBuilder.Entity<Product>()
    .HasMany(x => x.Category)

友情链接