private void basePriceEditBtn_Click(object sender, RoutedEventArgs e)
        {
            Window w = new Window();

            w.Width  = 500;
            w.Height = 200;

            Excel_underlyingBasePriceEditorView e_ubpev = new Excel_underlyingBasePriceEditorView();

            e_ubpev.BasePrice_ = this.selectedViewModel_.BasePrice_;

            w.Content = e_ubpev;

            if (w.ShowDialog() == true)
            {
                this.selectedViewModel_.BasePrice_ = e_ubpev.BasePrice_;
                this.selectedViewModel_.descriptionUpdate();
                this.UnderlyingDataGrid_.Items.Refresh();
            }
            else
            {
            }
        }
        private void basePriceEditBtn_Click(object sender, RoutedEventArgs e)
        {
            Window w = new Window();
            w.Width = 500;
            w.Height = 200;

            Excel_underlyingBasePriceEditorView e_ubpev = new Excel_underlyingBasePriceEditorView();

            e_ubpev.BasePrice_ = this.selectedViewModel_.BasePrice_;

            w.Content = e_ubpev;

            if (w.ShowDialog() == true)
            {
                this.selectedViewModel_.BasePrice_ = e_ubpev.BasePrice_;
                this.selectedViewModel_.descriptionUpdate();
                this.UnderlyingDataGrid_.Items.Refresh();
                
            }
            else
            {

            }

        }