Dictionary.ContainsKey return False, but a want True

Question

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

class Program
{
    static string Test()
    {
        Key a = new Key(         


        

Answer 1

ContainsKey in this case is comparing Key as objects and checking to see if the objects themselves are the same -- they are not. You need to implement IComparable or override Key.Equals or something along those lines to get it to do what you want.