public PluginExercisesConfigure(SQLiteConnection db, ObservableCollection <ExerciseMap> words)
        {
            db_    = db;
            words_ = words;
            InitializeComponent();
            TB_Add2.Focus();
            List_Exercises.ItemsSource = words;

            InputLanguageManager.SetInputLanguage(TB_Add2, CultureInfo.CreateSpecificCulture("en-GB"));
        }
        private void Add_Exercise_Click(object sender, RoutedEventArgs e)
        {
            string
                s1 = TB_Add2.Text.Trim();

            if (s1.Length != 0)
            {
                var
                    todb = new ExerciseMap {
                    Exercise = s1
                };
                words_.InsertSorted(todb, x => x.Exercise);
            }
            TB_Add2.Text = "";
            TB_Add2.Focus();
        }