Question

所以我有以下EF型号：

[Table("Site")]
public class Store{
    [Key]
    [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
    public int ID { get; set; }
    [ForeignKey("ID")]
    public virtual ICollection<Item> Items { get; set; }
}
[Table("Item")]
public class Item {
    [Key]
    [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
    public int ID { get; set; }
    [Column("SiteID")]
    public int storeID { get; set; }
    [ForeignKey("storeID")]
    public Store store { get; set; }
}

所以，从Item-＆gt; Store开始似乎很好，数据填充。但Store-＆gt; Items不会填充。我做错了什么？

Answer 1

弄清楚，要建立一对多关系，您需要使用InverseProperty。喜欢这个！

[Table("Site")]
public class Store {
    [Key]
    [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
    public int ID { get; set; }
    [InverseProperty("store")]
    public virtual ICollection<Item> Items { get; set; }
}

[Table("Item")]
public class Item {
    [Key]
    [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
    public int ID { get; set; }
    [Column("SiteID")]
    public int storeID { get; set; }
    [ForeignKey("storeID")]
    public Store store { get; set; }
}

Everything load，event the items collection。

在EF Code First中，如何设置一对多属性？

1 个答案: