private void BtAdd_Click(object sender, RoutedEventArgs e) { if (tb_AccountType.IsSelected) { at.Add(); } else if (tb_AccountSubType.IsSelected) { ast.Add(); } else if (tb_AccountSubTypeCategory.IsSelected) { astc.Add(); } else if (Tb_ProfitLostType.IsSelected) { plt.Add(); } else if (Tb_SpecialAccountType.IsSelected) { sat.Add(); } }