我有这些课程
public class Subdist
{
public int ID { get; set; }
public virtual ICollection<SubdistPIC> SubdistPICs { get; set; }
}
public class SubdistPIC
{
public int ID { get; set; }
public Subdist Subdist { get; set; }
public virtual PIC PIC { get; set; }
}
public class PIC
{
public int ID { get; set; }
public string Name { get; set; }
public bool IsActive { get; set; }
}
当我调用此方法时
public void InsertSubdist(Subdist obj)
{
_uow.Subdist.Add(obj);
_uow.Context.SaveChanges();
}
它将自动插入新的PIC,而不是仅仅以1:1的关系链接它。例如:
如果我的PIC表有这些记录
PIC
ID Name Active
1 Tommy 1
2 Joel 1
3 Ellie 1
它现在有
PIC
ID Name Active
1 Tommy 1
2 Joel 1
3 Ellie 1
4 Tommy 1
5 Joel 1
6 Ellie 1
SubdistPIC
ID PIC_ID Subdist_ID
1 5 1
2 4 1
3 6 1
我想要的是:
PIC
ID Name Active
1 Tommy 1
2 Joel 1
3 Ellie 1
SubdistPIC
ID PIC_ID Subdist_ID
1 1 1
2 2 1
3 3 1
知道怎么做到这一点?我是EF的新手