What's the best way of using a pair (triple, etc) of values as one value in C#?

Question

That is, I\'d like to have a tuple of values.

The use case on my mind:

Dictionary, object>

or

<         


        

Answer 1

Aye, there's System.Web.UI.Pair and System.Web.UI.Triplet (which has an overloaded creator for Pair-type behaviour!)

Answer 2

Fast-forward to 2010, .NET 4.0 now supports n-tuples of arbitrary n. These tuples implement structural equality and comparison as expected.

Answer 3

One simple solution has no been mentioned yet. You can also just use a List<T>. It's built in, efficient and easy to use. Granted, it looks a bit weird at first, but it does its job perfectly, especially for a larger count of elements.

Answer 4

There are not built-in classes for that. You can use KeyValuePair or roll out your own implementation.

Answer 5

You could use System.Collections.Generic.KeyValuePair as your Pair implementation.

Or you could just implement your own, they aren't hard:

public class Triple<T, U, V>
{
  public T First {get;set;}
  public U Second {get;set;}
  public V Third {get;set;}
}

Of course, you may someday run into a problem that Triple(string, int, int) is not compatible with Triple(int, int, string). Maybe go with System.Xml.Linq.XElement instead.

Answer 6

There aren't built ins, but a Pair<T,R> class is trivial to create.