C# 如何在LINQtoSQL中使用orderby和partition by获取最顶层行

我想返回2条得分最高的记录。王牌2分，吉姆3分。 我在sql中这样做了，但我似乎无法在linq中正确地转换它。 SQl查询：

Table
id | name | score
-----------------
3  | jim  | 2
4  | jim  | 1
5  | jim  | 3
6  | Ace  | 2
7  | Ace  | 1

以下是我在linq开始的工作：

SELECT *
      FROM   (SELECT Row_number() 
                       OVER( 
                         partition BY name
                         ORDER BY score DESC) AS rn, 
                     score, 
                     id, 
                     name, 
              FROM  table ) AS a 
      WHERE  rn = 1 

---

谢谢您的帮助。

您可以尝试这种方式，现场演示

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ctx.records.orderbydowningr=>r.score.GroupByr=>r.name.Selectg=>g.FirstOrDefault.ToList@是他干的。非常感谢。

ctx.records.GroupBy(r => r.name).Select(g => g.OrderByDescending(i => i.score)).ToList();

using System;
using System.Linq;

public class Program
{
    public static void Main()
    {
        var records = new []
        {
            new Record { id = 3, name = "jim", score = 2 },
            new Record { id = 4, name = "jim", score = 1 },
            new Record { id = 5, name = "jim", score = 3 },
            new Record { id = 6, name = "Ace", score = 2 },
            new Record { id = 7, name = "jim", score = 1 }
        };

        var result = records.GroupBy(p => p.name)
                            .Select(g => new { Name = g.Key, Score = g.Max(p => p.score) })
                            .ToList();
        foreach(var item in result)
            Console.WriteLine("Name: " + item.Name + " Score: " + item.Score);
    }

    public class Record
    {
        public int id {get; set;}
        public string name  {get; set;}
        public int score {get; set;}

    }
}