public int AddByNum(MeetingRoom_Information obj)
        {
            int mex   = 0;
            var model = DbSet.Where(a => a.RoomNum.ToString() == obj.RoomNum).ToList();

            if (model.Count <= 0)
            {
                DbSet.Add(obj);
            }
            else
            {
                mex = -1;
            }
            return(mex);
        }
        //根据主键id查询
        public MeetingRoom_Information GetInfoByRoomid(Guid id)
        {
            MeetingRoom_Information meetingroom_Information = DbSet.Single(uid => uid.Id.Equals(id));

            return(meetingroom_Information);
        }
 public virtual void Add(MeetingRoom_Information obj)
 {
     DbSet.Add(obj);
 }
 public void Update(MeetingRoom_Information obj)
 {
     DbSet.Update(obj);
 }