c# - linq lambda Orderby 的 SQL 语句

Question

我有这个sql语句:

SELECT QuestionNo, ActivityID, GROUP_CONCAT(CONCAT(Question, ' [',
Answer, ']') SEPARATOR ' ') AS joined from question GROUP BY
QuestionNo, ActivityID OrderBy questionHintID

我需要将它放在 linq lambda 中，到目前为止我所拥有的是

 IList<QuestionHint> lstRecords = context.questionhints.GroupBy(x => new { x.QuestionNo, x.ActivityID, x.TaskID }).ToList().Select(g => new QuestionHint()
        {
            QuestionNo = g.Key.QuestionNo,
            ActivityID = g.Key.ActivityID,
            TaskID = g.Key.TaskID,
            joined = String.Join(" ",
                    g.Select(i => i.QuestionContent + "[" + i.Answer + "]")),
            joinOption = String.Join(" ",
                   g.Select(a => "[" + a.Option1 + "," + a.Option2 + "]"))

        }).Where(x => x.TaskID == listTask && x.ActivityID == listActivity)
            //.Take(50)
           .ToList();

        return lstRecords;

如何添加到 Orderby 中？因为当我在查询中使用 join 时，记录检索是无序的，因为顺序不能保证按顺序排列，我如何将 OrderBy QuestionHintID (表的主键)添加到上面的 lambda 中？

Answer 1

您尝试过 .OrderByDescending(questionhints => Questionhint.ID) 吗？希望这有帮助!!