namespace Dic
{
public class Key
{
    string name;
    public Key(string n) { name = n; }
}

class Program
{
    static string Test()
    {
        Key a = new Key("A");
        Key b = new Key("A");
        System.Collections.Generic.Dictionary<Key, int> d = new System.Collections.Generic.Dictionary<Key, int>();
        d.Add(a, 1);
        return d.ContainsKey(b).ToString();
    }

    static void Main(string[] args)
    {
        System.Console.WriteLine(Test());
    }
}
}

I want TRUE!!!