TalkBot.MainActivity.OnCreateOptionsMenu C# (CSharp) Method

        public override bool OnCreateOptionsMenu(IMenu menu)
        {
            MenuInflater.Inflate (Resource.Menu.main_menu, menu);
                        int i = speechItemListView.CheckedItemPosition;

                        //if no text don't allow saving
                        if (string.IsNullOrWhiteSpace (textToSpeak.Text)) {
                            menu.RemoveItem (Resource.Id.menu_save);
                        }

                        //if nothing selected don't allow deleting
                        if (i < 0) {
                            menu.RemoveItem (Resource.Id.menu_delete);
                        }

            return true;
        }