我有兩個實體: public class ParentThing
{
[Key]
public int Id { get; set; }
[Required]
public ChildThing TheFirstThing { get; set; }
public ChildThing TheSecondThing { get; set; }
我有這個selfreferencing型號: public class AddressDataViewModel
{
[Required]
public String Country {get; set;}
public String Town {get; set;}
public AddressDataViewModel AdditionalAddr