Vb.net Billing Software Source Code Jun 2026

This comprehensive guide walks through the architectural design, database schema, and complete source code for a functional VB.NET billing application. We will use for the user interface and SQL Server (LocalDB) for the database layer. Key Features of the Billing System

Imports System.Data.SqlClient

' Insert Invoice Dim invoiceQuery As String = "INSERT INTO Invoices (InvoiceNumber, CustomerID, InvoiceDate, SubTotal, GSTAmount, TotalAmount, PaymentMethod, Status) VALUES (@InvoiceNo, @CustomerID, @Date, @SubTotal, @GST, @Total, @PaymentMethod, 'Completed') SELECT SCOPE_IDENTITY()"

Which database platform are you targeting ()? vb.net billing software source code

TextBox for Customer Name, DateTimePicker for Invoice Date, and a read-only TextBox for Invoice ID.

I'll provide you with a comprehensive guide and source code for a basic billing software system in VB.NET with SQL Server database.

A typical workflow for a VB.NET billing system using Crystal Reports involves a few key steps: TextBox for Customer Name, DateTimePicker for Invoice Date,

Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick lblDateTime.Text = DateTime.Now.ToString() End Sub

TextBox ( txtProdCode ) for barcode scans or manual code entries. ComboBox/TextBox ( txtProdName ) for product discovery. TextBox ( txtPrice ) for displaying the base item cost. TextBox ( txtQty ) for entering the purchase quantity. Button ( btnAddToCart ) to push line items into the grid.

To keep our code clean and maintainable, we will create a dedicated database configuration module. This class handles opening connections and executing standard data tasks safely. Add a new class to your project named DbConnection.vb : ComboBox/TextBox ( txtProdName ) for product discovery

Public Class frmMain Private Sub btnBilling_Click(sender As Object, e As EventArgs) Handles btnBilling.Click Dim billing As New frmBilling() billing.ShowDialog() End Sub Private Sub btnProducts_Click(sender As Object, e As EventArgs) Handles btnProducts.Click Dim products As New frmProducts() products.ShowDialog() End Sub

End Class

Instead of starting from scratch, you can modify existing, tested code.