Introduction to Generic Collections - Source: C# Station

Source: http://www.csharp-station.com/Tutorlals/Lesson20.aspx

using System;
using System.Collections.Generic;

public class Customer
{
    public Customer(int id, string name)
    {
        ID = id;
        Name = name;
    }

    private int m_id;

    public int ID
    {
        get { return m_id; }
        set { m_id = value; }
    }

    private string m_name;

    public string Name
    {
        get { return m_name; }
        set { m_name = value; }
    }
}

class Program
{
    static void Main(string[] args)
    {
        List<int> myInts = new List<int>();

        myInts.Add(1);
        myInts.Add(2);
        myInts.Add(3);

        for (int i = 0; i < myInts.Count; i++)
        {
            Console.WriteLine("MyInts: {0}", myInts[i]);
        }

        Dictionary<int, Customer> customers = new Dictionary<int, Customer>();

        Customer cust1 = new Customer(1, "Cust 1");
        Customer cust2 = new Customer(2, "Cust 2");
        Customer cust3 = new Customer(3, "Cust 3");

        customers.Add(cust1.ID, cust1);
        customers.Add(cust2.ID, cust2);
        customers.Add(cust3.ID, cust3);

        foreach (KeyValuePair<int, Customer> custKeyVal in customers)
        {
            Console.WriteLine(
                "Customer ID: {0}, Name: {1}",
                custKeyVal.Key,
                custKeyVal.Value.Name);
        }

        Console.ReadKey();
    }
}