Indexer

Vehicle.cs

 // Vehicle vehicle = new Vehicle("Car");
 // vehicle["frame"] = "carbon";
 // vehicle["wheelCount"] = "4";
 
 class Vehicle
    {
        private string _vehicleType;
        private Dictionary<string, string> _parts =
          new Dictionary<string, string>();
        // Constructor
        public Vehicle(string vehicleType)
        {
            this._vehicleType = vehicleType;
        }
        // Indexer
        public string this[string key]
        {
            get { return _parts[key]; }
            set { _parts[key] = value; }
        }
        public void Show()
        {
            Console.WriteLine("\n---------------------------");
            Console.WriteLine("Vehicle Type: {0}", _vehicleType);
            Console.WriteLine(" Frame : {0}", _parts["frame"]);
            Console.WriteLine(" Engine : {0}", _parts["engine"]);
            Console.WriteLine(" #Wheels: {0}", _parts["wheels"]);
            Console.WriteLine(" #Doors : {0}", _parts["doors"]);
        }
    }