//For q.cnblogs.com
public class QuestionService
{private IRepository<QuestionItem> _questionRepository;public QuestionService(IUnitOfWork unitOfWork): base(unitOfWork){_questionRepository = new Repository<QuestionItem>(unitOfWork);}public List<QuestionItem> GetUnsolvedQuestions(int pageIndex, int pageSize){return _questionRepository.Entities.Include(q => q.User).Where(q => q.IsActive && q.User.IsActive).Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList();}
}public class QuestionItem
{public int Id { get;set; }public string Title { get; set; }public bool IsActive { get; set; }public int UserId { get; set; }public User User { get; set; }
}public class User
{public int UserId { get; set; }public bool IsActive {get;set;}
}

SELECT TOP (25)
[Filter1].[Id] AS [Id],
[Filter1].[Title] AS [Title],
[Filter1].[UserId] AS [UserId],
[Filter1].[UserId1] AS [UserId1],
[Filter1].[IsActive1] AS [IsActive],
[Filter1].[UserId2] AS [UserId1],
[Filter1].[IsActive2] AS [IsActive1]
FROM ( SELECT [Extent1].[Id] AS [Id], [Extent1].[Title] AS [Title],
[Extent1].[UserId] AS [UserId1],[Extent1].[IsActive] AS [IsActive1],
[Extent3].[UserID] AS [UserID2], [Extent3].[IsActive] AS [IsActive2],
row_number() OVER (ORDER BY [Extent1].[QID] DESC) AS [row_number]FROM   [dbo].[question_Item] AS [Extent1]INNER JOIN [dbo].[Users] AS [Extent2] ON [Extent1].[UserID] = [Extent2].[UserID]LEFT OUTER JOIN [dbo].[Users] AS [Extent3] ON [Extent1].[UserID] = [Extent3].[UserID]WHERE ([Extent1].[IsActive] = 1) AND ([Extent2].[IsActive] = 1)
)  AS [Filter1]
WHERE [Filter1].[row_number] > 0
ORDER BY [Filter1].[Id] DESC