public welcomepage(Grid mainGrid)
        {
            InitializeComponent();
            this.mainGrid = mainGrid;
            db.lastDbOpenUrl();
            db.dbConncetionValider();
            connectionValider();

            try
            {
                legendChanger_Welcome(db.langWordList(db.languageAsker()));
            }
            catch (Exception)
            {
                MessageBox.Show("Adja meg a szójegyzék helyét. (xls)");
                ex.langListRead();
                legendChanger_Welcome(db.langWordList(db.languageAsker()));
            }
        }