C#: System.Collections.Generic: Custom Generic list class

gistfile1.cs

using System;
using System.Collections.Generic;

namespace GenericList {
    class Program {
        static void Main(string[] args) {
            // int is the type argument
            GenericList<int> list = new GenericList<int>();

            for ( int x = 0 ; x < 10 ; x++ ) {
                list.AddHead( x );
            }

            foreach ( int i in list ) {
                System.Console.Write( i + " " );
            }

            System.Console.WriteLine( "\nDone" );
            Console.Read();
        }
    }

    // type parameter T in angle brackets
    public class GenericList<T> {
        // The nested class is also generic on T.
        private class Node {
            // T used in non-generic constructor.
            public Node(T t) {
                next = null;
                data = t;
            }

            private Node next;
            public Node Next {
                get { return next; }
                set { next = value; }
            }

            // T as private member data type.
            private T data;

            // T as return type of property.
            public T Data {
                get { return data; }
                set { data = value; }
            }
        }

        private Node head;

        // constructor
        public GenericList() {
            head = null;
        }

        // T as method parameter type:
        public void AddHead(T t) {
            Node n = new Node( t );
            n.Next = head;
            head = n;
        }

        public IEnumerator<T> GetEnumerator() {
            Node current = head;

            while ( current != null ) {
                yield return current.Data;
                current = current.Next;
            }
        }
    }
}