internal void OnKeyInput(KeyboardEventArgs args) { switch (args.Key) { case "Enter": case "Tab": case "ArrowRight": if (ShowSuggestions) { AddWord(SuggestionIterator.Current); } break; case "Backspace": if (string.IsNullOrEmpty(WordModel.WordInput) && WordModel.AddedWords.Count != 0) { DeleteWord(WordModel.AddedWords.Last()); } break; case "ArrowUp": SuggestionIterator.MoveBefore(); break; case "ArrowDown": SuggestionIterator.MoveNext(); break; } }