//Event Handlers:
        private void RfidReader_TagReadEvent(object sender, EventArgsClasses.RfidEventArgs e)
        {
            switch (_state)
            {
            case LadeskabState.Available:
                // Check for ladeforbindelse
                if (_chargeControl.IsConnected())
                {
                    _door.LockDoor();
                    _chargeControl.StartCharge();
                    _oldId = e.Id;

                    _display.CabinetOccupied();
                    _state = LadeskabState.Locked;
                    _logFile.DoorLocked(e.Id);
                }
                else
                {
                    //Display shows connection error
                    _display.ConnectionError();
                }

                break;

            case LadeskabState.DoorOpen:
                // Ignore
                break;

            case LadeskabState.Locked:
                // Check for correct ID
                if (e.Id == _oldId)
                {
                    _chargeControl.StopCharge();
                    _door.UnlockDoor();
                    _logFile.DoorUnlocked(e.Id);

                    // Display shows remove phone - message
                    _display.RemovePhone();
                    _state = LadeskabState.Available;
                }
                else
                {
                    //Display shows RFID-Error
                    _display.RFIDError();
                }

                break;
            }
        }