Question

我使用实体框架并拥有一些类

public class Lot
{
    public int LotId { get; set; }
    public string Description { get; set; }
    public virtual Product Product { get; set; }
    public virtual ApplicationUser Owner { get; set; }
    public virtual ApplicationUser CurrentCustomer { get; set; }
    public virtual ICollection<ApplicationUser> AllCustomers { get; set; }
    public virtual AuctionDates AuctionDates { get; set; }
    public  virtual AuctionPrices AuctionPrices { get; set; }
    public virtual State State { get; set; }
    public virtual ProductImages Images { get; set; }
}

和

public class ApplicationUser : IdentityUser
{
    [Required]
    public virtual UserInfo UserInfo { get; set; }
    public virtual ICollection<Lot> SelledLots { get; set; }
    public virtual ICollection<Lot> BuyedLots { get; set; }
    public virtual ICollection<Lot> ParticipatedLots { get; set; }
}

问题是我如何设置在所有者（Lot）中出售批次（ApplicationUser）的映射用户的配置，在当前客户（Lot）中购买批次（ApplicationUser）等等。非常感谢。

Answer 1

我终于找到了答案。在这种情况下，应使用数据注释InverseProperty。 https://www.safaribooksonline.com/library/view/programming-entity-framework/9781449317867/ch04s03.html

public class Lot
{
    public int LotId { get; set; }
    public string Description { get; set; }
    public virtual Product Product { get; set; }
    [InverseProperty("SelledLots")]
    public virtual ApplicationUser Owner { get; set; }
    [InverseProperty("BuyedLots")]
    public virtual ApplicationUser CurrentCustomer { get; set; }
    [InverseProperty("ParticipatedLots")]
    public virtual ICollection<ApplicationUser> AllCustomers { get; set; }
    public virtual AuctionDates AuctionDates { get; set; }
    public  virtual AuctionPrices AuctionPrices { get; set; }
    public virtual State State { get; set; }
    public virtual ProductImages Images { get; set; }
}

应该使用哪些属性进行正确关联

1 个答案: