private void orderDeleteButton_Click(object sender, RoutedEventArgs e)
{
BillingOperation order = (BillingOperation)billingDataGrid.SelectedItem;
if (order != null)
{
BillingService billingService = new BillingService();
if (MessageBox.Show("Are you want to Delete ?", "Confirm", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
billingService.DeleteOrder(order.OrderId);
}
LoadData();
}
}