Vbnet+billing+software+source+code [verified] Jun 2026

End Sub

VB.NET billing source code is like a – ugly, simple, easy to fix, and gets the billing job done. It won’t win design awards or handle 500 concurrent users, but for a single-window shop, tutoring material, or a quick internal tool, it’s surprisingly effective. vbnet+billing+software+source+code

' 1. Insert Invoice Header Using cmd As New SqlCommand(queryInvoice, conn, transaction) cmd.Parameters.AddWithValue("@Date", DateTime.Now) cmd.Parameters.AddWithValue("@CID", customerId) cmd.Parameters.AddWithValue("@Total", totalAmount) invoiceId = Convert.ToInt32(cmd.ExecuteScalar()) End Using End Sub VB

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Private Sub PrintInvoice(ByVal invNo As String) ' Build invoice text Dim sb As New System.Text.StringBuilder() sb.AppendLine(" MY BILLING SOFTWARE ") sb.AppendLine("--------------------------") sb.AppendLine($"Invoice No: invNo") sb.AppendLine($"Date: DateTime.Now") sb.AppendLine("--------------------------") sb.AppendLine("Item Qty Price Total") For Each row As DataRow In cartTable.Rows sb.AppendLine($"row("ProductName") row("Quantity") row("Price") row("Total")") Next sb.AppendLine("--------------------------") sb.AppendLine($"Grand Total: lblGrandTotal.Text") sb.AppendLine("--------------------------") sb.AppendLine(" Thank you! ") easy to fix