declare tuple c# code example

Example 1: c# tuple access

var numbers = Tuple.Create(1, 2, Tuple.Create(3, 4, 5, 6, 7,  8), 9, 10, 11, 12, 13 );
numbers.Item1; // returns 1
numbers.Item2; // returns 2
numbers.Item3; // returns (3, 4, 5, 6, 7,  8)
numbers.Item3.Item1; // returns 3
numbers.Item4; // returns 9
numbers.Rest.Item1; //returns 13

Example 2: tuple parameter name

// Tuples cannot be assigned parameter names.
//Instead you could do something like this:

(string name, int id) user = ("jack", 1);
Console.WriteLine($"{user.name}, {user.id}");
// Output:
//	jack, 1

// When working with lists:

List<(string name, int id)> users = new List<(string, int)>();

users.Add(("jack", 1));
users.Add(("john", 2));

users.ForEach((x) =>
	Console.WriteLine($"{x.name}, {x.id}")):

// Output:
//	jack, 1
//	john, 2