合并两个动态列表并覆盖值

Question

我有两个动态列表，每个列表项包括三个属性：'Id'（int），'LikesRed'（bool）和'LikesBlue'（布尔）。

我想合并这两个列表，按照它的'Id'对每个项目进行分组，但我也想用任何'true'值覆盖任何'false'值。

因此，举例来说，这里是数据为我的两个列表：

List1 

{ Id = 1, LikesRed = True, LikesBlue = False } 
{ Id = 2, LikesRed = True, LikesBlue = False } 
{ Id = 4, LikesRed = False, LikesBlue = True } 

List2 

{ Id = 1, LikesRed = False, LikesBlue = True } 
{ Id = 3, LikesRed = False, LikesBlue = True } 
{ Id = 4, LikesRed = True, LikesBlue = False } 

这里是我想要的结果：

{ Id = 1, LikesRed = True, LikesBlue = True } 
{ Id = 2, LikesRed = True, LikesBlue = False } 
{ Id = 3, LikesRed = False, LikesBlue = True } 
{ Id = 4, LikesRed = True, LikesBlue = True } 

我已经成功地合并两个列表（但项目没有分组）使用以下内容：

var results = list1.Concat(list2); 

我也试图将这个列表中的项目用LI NQ（它的工作原理，但我不知道我能/应该用它做）：

var final = from x in results 
      group x by x.Id into g 
      select g; 

谁能提供任何意见，我怎么能实现我的目标是什么？

Answer 1

只是检查是否在组中的任何项目已值设置为true：

from x in list1.Concat(list2) 
group x by x.Id into g 
select new { 
    Id = g.Key, 
    LikesRed = g.Any(x => x.LikesRed), 
    LikesBlue = g.Any(x => x.LikesBlue) 
} 

Answer 2

您可以第一组列出了IDS有像你已经做了和丹恩使用Zip与您的喜好覆盖值。