c#对元组列表进行分组然后排序<T1,T2,T3> [英] c# Group and then Sort list of tuple &lt;T1,T2,T3&gt;

问题描述

我是 C# 新手，我想对我的 List

I'm new to C# and I want to sort my collection of List<Tuple<int, string, int>>

用户输入数据例如:

T1   T2   T3
1  abbc   3             
1  becky  5           
1  betty  56           
2  Olivia 6             
2  abbc   3            
2  becky  5           
3  Olivia 675

我希望排序列表看起来像；

I would like the sort list to look like;

 ID = 1 { abbc,3|becky,5|betty,56 }        
 ID = 2 { Olivia,6|abbc,3|becky,5 }          
 ID = 3 { Olivia,675 }

请帮助我真的卡住了:)

please help i'm really stuck :)

推荐答案

看起来你更像是想要Group你的项目然后Order按第一个 int (Id):

It looks more like you want to Group your items and then Order by the first int (Id):

List<Tuple<int, string, int>> data = new List<Tuple<int, string, int>>
{
    new Tuple<int, string, int>(1,"abbc",3),
    new Tuple<int, string, int>(1,"becky",5),
    new Tuple<int, string, int>(1,"betty",56),
    new Tuple<int, string, int>(2,"Olivia",6),
    new Tuple<int, string, int>(2,"abbc",3),
    new Tuple<int, string, int>(2,"becky",5),
    new Tuple<int, string, int>(3,"Olivia",675),
};

var result = data.GroupBy(item => item.Item1)
                 .Select(group => new { Id = group.Key, Values = group.Select(item => new { item.Item2, item.Item3 }).ToList() })
                 .OrderBy(item => item.Id).ToList();

这篇关于c#对元组列表进行分组然后排序<T1,T2,T3>的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！