private static void OnChangedCurrentRecord(DependencyObject doj, DependencyPropertyChangedEventArgs dp)
        {
            Prices_BC uc1 = doj as Prices_BC;

            _clearSheet(uc1);

            if (uc1.CurrentMarket != null)
            {
                uc1.UpdateGrid();
            }
        }
        private static void _clearSheet(Prices_BC uc1)
        {
            uc1.tm.Text   = "";
            uc1.r1.Text   = "";
            uc1.r2.Text   = "";
            uc1.time.Text = "";

            foreach (var item in uc1.Grid)
            {
                item.Text = "";
            }
        }