c# - Defining type aliases

Question

One feature of Pascal I found very useful was the ability to name a data type, eg

type
 person: record
             name: string;
             age: int;
         end;

var
 me: person;
 you: person;

etc

Can you do something similar in C#? I want to be able to do something like

using complexList = List<Tuple<int,string,int>>;

complexList peopleList;
anotherList otherList;

So that if I have to change the definition of the datatype, I can do it in one place.

Does C# support a way to achieve this?

Answer 1

Yes, it's possible. You can write:

using System;
using System.Collections.Generic;

namespace ConsoleApplication12
{
    using MyAlias = List<Tuple<int, string, int>>;
}

or, if declared outside the namespace:

using System;
using System.Collections.Generic;

using MyAlias = System.Collections.Generic.List<System.Tuple<int, string, int>>;

namespace ConsoleApplication12
{
}

then use it as a type:

MyAlias test = new MyAlias();