public bool Contains(KeyType key) { if (this._keys.IndexOf(key) > -1) { return true; } else { return false; } }
public void removeKey(KeyType key) { this._keys.Remove(key); //throw new System.NotImplementedException(); }
public void addKey(KeyType key) { if (this._keys.IndexOf(key) != -1) { this._keys.Add(key); } }