#region RelayCommand

        RelayCommand _relayCommandCommand;
        public ICommand RelayCommandCommand
        {
            get
            {
                if (_relayCommandCommand == null)
                {
                    _relayCommandCommand = new RelayCommand(param => RelayCommandCommandExecute(param), param => RelayCommandCommandCanExecute(param));
                }
                return _relayCommandCommand;
            }
        }
        void RelayCommandCommandExecute(object param)
        {

        }
        bool RelayCommandCommandCanExecute(object param)
        {
            return true;
        }

        #endregion