c# - 使用 recordType 的对象更新 Linq2Sql 中的记录

Question

以下简化代码不起作用(因为它将检索到的对象引用设置为参数)，但它显示了我想要执行的操作

 public bool updateEvent(clubEvent newEvent)
    {
        TNightCon tCon = new TNightCon();
        clubEvent cEv = (from cEvent in tCon.clubEvents
                         where cEvent.EventID == newEvent.EventID
                         select cEvent).First();

        // Won't work, but do I have to set all the fields manually?
        cEv = newEvent;
        tCon.SubmitChanges();
        return true;
    }

Answer 1

或者，交替地，

  tCon.ClubEvents.DeleteOnSubmit(cEv);
  tCon.CLubEvents.InsertOnSubmit(newEvent);
  tCon.SubmitChanges();