//請各位大蝦幫幫忙弄了我好多天了               DataContext con = new DataContext();                 Survey entity = null;//接收的實體對象                 DataLoadOptions dl = new DataLoadOptions();                    dl.LoadWith<Survey>(c => c.SurveyAnswers);//關聯SurveyAnswers表                                con.LoadOptions = dl;                entity = (from su in con.Surveys                           //where中我想讓SurveyAnswers表的id等于傳過來的id                          where  su.ID == ID //&& SurveyAnswers.ID == AnswerID                          select su).SingleOrDefault();