Convert list with duplicates into dictionary in C#

Asked Apr 19 '18 at 18:36

Active Apr 19 '18 at 18:36

Viewed 74 times

i have a List<Tuple<long,string>> like :

id value
1   hello
2   what
1   why
3   how
4   when
3   who

there could be multiple values for the same id, i want to convert the list into a dictionary of long, List<string> where id is the key and value is list of all corresponding value strings,

how can i do that? I tried using ToDictionary but it throws exceptions. thanks for your help guys

asked Apr 19 '18 at 18:36

Coder

Sounds like you need to `GroupBy()` something... – maccettura Apr 19 '18 at 18:38
Out of curiousity, why do you think you need a `long`? – Ňɏssa Pøngjǣrdenlarp Apr 19 '18 at 18:38
`.ToLookup(x=>x.Item1,x=>x.Item2)` ..... – Eser Apr 19 '18 at 18:38

Convert list with duplicates into dictionary in C#

0 Answers0