如何在Linq中订购组结果？

Question

我有以下linq查询，它工作正常。我不知道我是如何订购该组的结果。

from a in Audits 
join u in Users on a.UserId equals u.UserId 
group a by a.UserId into g 
select new { UserId = g.Key, Score = g.Sum(x => x.Score) } 

结果目前按UserId升序排列。我在分数下降后。

谢谢:)

Answer 1

只需添加排序依据条款;-)

from a in Audits 
join u in Users on a.UserId equals u.UserId 
group a by a.UserId into g 
let score = g.Sum(x => x.Score) 
orderby score descending 
select new { UserId = g.Key, Score = score }; 

Answer 2

var results = 
(from a in Audits 
join u in Users on a.UserId equals u.UserId 
group a by a.UserId into g 
select new { UserId = g.Key, Score = g.Sum(x => x.Score) }) 
.OrderByDescending(p=>p.Score); 

希望这将解决您的问题，比前一个更容易;）

干杯