public void DisplayMilkChoice(bool isValid) { if (isValid) { Console.Write("\tWould you like some milk with that? : "); } else { MilkOptions milkOptions = new MilkOptions(); var list = milkOptions.GetMilkOptionList(); foreach( KeyValuePair<string, bool> kvp in list ) { Console.WriteLine("\t{0}", kvp.Key); } Console.Write("\tThat is not a valid option please enter a value from the list above? : "); } }