我想要第三列“项目”,其中包含分组的值。
var dic = new Dictionary<string, int>();
dic.Add("a", 1);
dic.Add("b", 1);
dic.Add("c", 2);
dic.Add("d", 3);
var dCounts =
(from i in dic
group i by i.Value into g
select new { g.Key, count = g.Count()});
var a = dCounts.Where(c => c.count>1 );
dCounts.Dump();
a.Dump();
此代码导致:
Key Count
1 2
2 1
3 1
我想要这些结果:
Key Count Items
1 2 a, b
2 1 c
3 1 d
最佳答案
var dCounts =
(from i in dic
group i by i.Value into g
select new { g.Key, count = g.Count(), Items = string.Join(",", g.Select(kvp => kvp.Key)) });
使用 string.Join(",", {array})
,传入您的键数组。
关于c# - 使用 linq 获取分组的逗号分隔值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/3239552/