最短的内联集合初始化程序？ C＃

Question

What is the neatest / shortest way I can write an inline collection initializer?

I dont care about reference names, indexes are fine, and the item only needs to be used in the scope of the method.

I think an anonymous type collection would be messier because I would have to keep writing the key name every time.

I've currently got

var foo = new Tuple<int, string, bool>[] 
{ 
   new Tuple<int, string, bool>(1, "x", true), 
   new Tuple<int, string, bool>(2, "y", false) 
};

Im hoping c# 4.0 will have something ive missed.

Answer 1

你可以得到的最短的是使用Tuple.Create而不是new Tuple ：

var foo = new [] { Tuple.Create(1, "x", true), Tuple.Create(2, "y", false) };

Answer 2

a bit less space in there if you use Tuple.Create(1,"x",true) instead of the new thing - and you can strip the new Tuple<tint, string, bool> stuff before the array too:

var foo = new [] { Tuple.Create(1, "x", true), Tuple.Create(2, "y", false) };

or take this one:

Func<int, string, bool, Tuple<int, string, bool>> T = (i, s, b) => Tuple.Create(i,s,b);
var foo = new [] { T(1, "x", true), T(2, "y", false) };

or even

Func<int, string, Tuple<int, string, bool>> T = (i, s) => Tuple.Create(i,s,true);
Func<int, string, Tuple<int, string, bool>> F = (i, s) => Tuple.Create(i,s,false);
var foo = new [] { T(1, "x"), F(2, "y") };

Answer 3

You can also add a

using MyTuple= System.Tuple<int, string, bool>;

at the end of your using declarations and then use MyTuple instead of the longer version.