出于某种原因,我无法在GroupJoin语句中包含任何与对象相关的实体.
public class Faclility{public List<Room> {get;set;}}
public class Room{public List<Chairs> {get;set;}}
dbContext.Facilities.GroupJoin(db.Room.Include(x=>x.Chairs),f=>f.fUnit??ID,r=>r.fUnitID,(f,result)=> new {})
查询有效,我得到了一些结果.但是,所有"Chair"对象都为null.