Insight数据库自动接口&；映射多对多

假设我有以下表格：

CREATE TABLE Game
(
  GameId INT,
  Name VARCHAR(50)
)
CREATE TABLE UserGameJoin
(
  GameId INT,
  UserId INT
)
CREATE TABLE User
(
  UserId INT,
  Username VARCHAR(50)
)

以及以下类别：

public class Game
{
  public int GameId {get;set;}
  public string Name {get;set;}
  public List<User> Users {get;set;}
}
public class User
{
  public int UserId {get;set;}
  public string Username {get;set;}
}

我该如何从这个存储过程映射结果

CREATE PROC GetGamesAndUsers
AS
SELECT *
FROM Game
SELECT GameId, u.*
FROM Game g
INNER JOIN UserGameJoin j ON j.GameId = g.GameId
INNER JOIN User u ON u.UserId = j.UserId

到自动接口实现？

public interface IGameLibrary
{
  List<Game> GetGamesAndUsers();
}

我已经通过添加来处理Recordset属性

[Recordset(1, typeof(User), Id = "GameId", IsChild = true)]

但在呼叫连接时。As（）抛出InvalidOperationException："Sequence不包含匹配的元素。"

public interface IGameLibrary 
{
  [Recordset(1, typeof(User), Id = "GameId", IsChild = true)]
  IList<Game> GetGamesAndUsers();
}