C# 将Sql查询转换为Lambda表达式-筛选子对象并返回父对象

我发现一个帖子正是我的问题，但没有一个正确的答案

点击

“我希望筛选出”具有子对象的父对象满足条件。家长不应仅返回符合条件的孩子。”

遵循我要转换lambda的sql查询：

SELECT
*
FROM
RO
INNER JOIN
ROE
ON ROE.ROId = RO.Id
WHERE RO.TreeNode LIKE '.66.%' AND ROE.EnvironmentId = 3

我正在使用实体框架。我有两个实体：RO和ROE，遵循实体结构：

public class RO 
{ 
     int ROId {get; set}
     string ROName {get; set}
     string TreeNode {get; set}
     EntityCollection<ROE> ROEs {get; set}
} 

public class ROE 
{ 
     int ROEId {get; set}
     int ROId {get; set}
     int environmentId {get; set}
     string ROName {get; set}
}

但是这个表达式不起作用，因为ROEs集合没有被过滤

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我的问题得到了回答。但我的问题是“包含”，因为当我尝试恢复某些子集合时，它不起作用。例如：

var ros = context.ROS.Include("T").Include("T.TOEs").Include("ROEs.EL")
                     .Where(ro => ro.TreeNode.StartsWith('.66.'))
                     .Select(ro => new 
                                     {
                                       ro,
                                       // "T" Object is working, but the child collection "T.TOEs" isn't working
                                       T = ro.T,
                                       // "ROEs" Collection is working, but the child collection "ROEs.EL" isn't working
                                       ROEs = ro.ROEs.Where(roe => roe.EnvironmentId == environmentId)
                                     })
                     .AsEnumerable()
                     .Select(x => x.ro)
                     .ToList();

---

抱歉。现在，我只使用“编辑”链接。我想这就是你的意思。@AdaltonVelosodeLima你的问题得到了回答吗？我的问题得到了回答。但我的问题是“包含”，因为当我尝试恢复一些子集合时，它不起作用。

var ros = context.ROS.Include("T").Include("T.TOEs").Include("ROEs.EL")
                     .Where(ro => ro.TreeNode.StartsWith('.66.'))
                     .Select(ro => new 
                                     {
                                       ro,
                                       // "T" Object is working, but the child collection "T.TOEs" isn't working
                                       T = ro.T,
                                       // "ROEs" Collection is working, but the child collection "ROEs.EL" isn't working
                                       ROEs = ro.ROEs.Where(roe => roe.EnvironmentId == environmentId)
                                     })
                     .AsEnumerable()
                     .Select(x => x.ro)
                     .ToList();