What is equivalent to Dictionary with size one (count) 1 in C#?

Question

I want to create Key/Value Pair but with only one Set, not Dictionary with multiple pairs. (I don't want to use Array of size 2.)

What is the best way to do in C#?

You already have two answers: KeyValuePair and Tuple. Especially for Tuple I'd consider to use a custom type where members have proper name. Note they're similar but if performance are (really, in a measured way) important then you should carefully pick right one (one is a value type, the other a reference type). — Adriano Repetti, Sep 24 '15 at 07:51
You already mentioned the answer in your question. if you would have typed Key/ValuePair c# in google, suprise! — Bgl86, Sep 24 '15 at 07:52

score 2 · Accepted Answer · answered Sep 24 '15 at 07:48

2

var keyValuePair = new KeyValuePair<int, int>(1, 1);

answered Sep 24 '15 at 07:48

Yuval Itzchakov

Thanks Yuval that is exactly what I was looking for !! – JharPaat Sep 24 '15 at 07:51
@JharPaat You welcome :) – Yuval Itzchakov Sep 24 '15 at 07:51

score 2 · Answer 2 · answered Sep 24 '15 at 07:49

2

The Tuple should do what you are after:

Provides static methods for creating tuple objects.

Alternatively, you could always roll your own custom objects which has 2 fields.

answered Sep 24 '15 at 07:49

npinti

score 1 · Answer 3 · answered Sep 24 '15 at 07:51

1

For temporary/internal use you can do with anonymous object:

  var item = new {
    name = "myName",
    value = 456
  };

answered Sep 24 '15 at 07:51

Dmitry Bychenko

3 Answers3