A form to add, update, delete, and search for customer details (Name, Address, Phone, Email). 3. Product/Service Management
Imports System.Data.SQLite Public Class DbManager ' Adjust connection string based on your database file location Private Shared connString As String = "Data Source=BillingDB.db;Version=3;" Public Shared Function GetConnection() As SQLiteConnection Dim conn As New SQLiteConnection(connString) Return conn End Function ' Setup initial sample tables if they do not exist Public Shared Sub InitializeDatabase() Using conn As SQLiteConnection = GetConnection() conn.Open() Dim cmdText As String = " CREATE TABLE IF NOT EXISTS Products ( ProductID INTEGER PRIMARY KEY AUTOINCREMENT, ProductName TEXT NOT NULL, Price DECIMAL(10,2), StockQuantity INTEGER ); CREATE TABLE IF NOT EXISTS Invoices ( InvoiceID INTEGER PRIMARY KEY AUTOINCREMENT, InvoiceDate DATETIME, CustomerName TEXT, GrandTotal DECIMAL(10,2) ); CREATE TABLE IF NOT EXISTS InvoiceDetails ( DetailID INTEGER PRIMARY KEY AUTOINCREMENT, InvoiceID INTEGER, ProductID INTEGER, Quantity INTEGER, UnitPrice DECIMAL(10,2), SubTotal DECIMAL(10,2) );" Using cmd As New SQLiteCommand(cmdText, conn) cmd.ExecuteNonQuery() End Using End Using End Sub End Class Use code with caution. 2. Main Billing Form Logic ( frmBilling.vb )
: Crystal Reports or Microsoft RDLC Report Designer 2. Database Schema Configuration
: Produces detailed summaries of sales and payments over specific periods. Technical Architecture vbnet+billing+software+source+code
' Update Grand Total Label CalculateGrandTotal() End If End Sub
Ensure you have Visual Studio installed (Community Edition is fine).
This article provides a deep dive into creating a full-featured billing system using . You will learn the architecture, database design, and, most importantly, vbnet billing software source code that you can customize for real-world use. A form to add, update, delete, and search
Effective billing software typically includes several integrated modules to handle various business aspects:
: You don't need dedicated APIs for hardware scanners. Most USB barcode scanners mimic keyboard entry. Wire up the TextBox_KeyDown event on your product input field to listen for the Enter key, which fires automatically when an item is scanned.
I can provide the specific subroutines or configurations you need to implement next. A form to add
: Offers downloadable ZIP files with complete source code, documentation, and database scripts for various billing systems, including Computer Shop Billing and Water Billing Systems .
A simple summary showing "Total Sales Today" and "Low Stock Alerts." 7. Modern Enhancements