c#でList<Tuple2`>をDictionaryに変換

_log

(0, Hoge)
(1, Foo)
(2, Bar)
[0, Hoge]
[1, Foo]
[2, Bar]

TupleToDic.cs

using System;
using System.Collections.Generic;
using System.Linq;

class TupleToDic {
	public static void Main() {
		var src = new List<Tuple<int,String>>(){
			new Tuple<int,string>(0,"Hoge"),
			new Tuple<int,string>(1,"Foo"),
			new Tuple<int,string>(2,"Bar"),
		};
		foreach(var s in src) {
			Console.WriteLine(s);
		}
		foreach(var kv in src.ToDictionary()) {
			Console.WriteLine(kv);
		}

	}
}
static class Extension {
	public static Dictionary<K,V> ToDictionary<K,V>(this IEnumerable<Tuple<K,V>> src) {
		return src.ToDictionary(t => t.Item1, t => t.Item2);
	}
}