Vb.net Billing Software Source Code | 100% DIRECT |

Private Sub frmBilling_Load(sender As Object, e As EventArgs) Handles MyBase.Load InitializeCartTable() GenerateInvoiceNumber() LoadProducts() LoadCustomers() End Sub

CREATE DATABASE BillingDB; GO USE BillingDB; GO -- 1. Products Table CREATE TABLE Products ( ProductID INT IDENTITY(1,1) PRIMARY KEY, ProductCode VARCHAR(50) UNIQUE NOT NULL, ProductName VARCHAR(100) NOT NULL, UnitPrice DECIMAL(18,2) NOT NULL, StockQty INT NOT NULL ); -- 2. Customers Table CREATE TABLE Customers ( CustomerID INT IDENTITY(1,1) PRIMARY KEY, CustomerName VARCHAR(100) NOT NULL, ContactNumber VARCHAR(20), Address VARCHAR(250) ); -- 3. Invoice Header Table CREATE TABLE InvoiceHeader ( InvoiceID INT IDENTITY(1,1) PRIMARY KEY, InvoiceNumber VARCHAR(50) UNIQUE NOT NULL, InvoiceDate DATETIME DEFAULT GETDATE(), CustomerID INT FOREIGN KEY REFERENCES Customers(CustomerID), GrandTotal DECIMAL(18,2) NOT NULL, TaxAmount DECIMAL(18,2) NOT NULL, NetAmount DECIMAL(18,2) NOT NULL ); -- 4. Invoice Details Table CREATE TABLE InvoiceDetails ( DetailID INT IDENTITY(1,1) PRIMARY KEY, InvoiceID INT FOREIGN KEY REFERENCES InvoiceHeader(InvoiceID) ON DELETE CASCADE, ProductID INT FOREIGN KEY REFERENCES Products(ProductID), Quantity INT NOT NULL, UnitPrice DECIMAL(18,2) NOT NULL, SubTotal DECIMAL(18,2) NOT NULL ); -- Insert Sample Data INSERT INTO Products (ProductCode, ProductName, UnitPrice, StockQty) VALUES ('P001', 'Wireless Mouse', 25.00, 50), ('P002', 'Mechanical Keyboard', 75.50, 30), ('P003', '27-Inch Monitor', 210.00, 15); INSERT INTO Customers (CustomerName, ContactNumber, Address) VALUES ('Walk-in Customer', '0000000000', 'N/A'), ('John Doe', '1234567890', '123 Main Street'); Use code with caution. 2. Setting Up the VB.NET Project Open .

The VB.NET billing software uses a database to store data, including customer information, invoices, payments, and products. The database design consists of several tables, including: vb.net billing software source code

: Real-time tracking of products to ensure you never run out of stock.

Private Sub ResetForm()ClearProductFields()txtCustomerName.Clear()txtContact.Clear()txtAddress.Clear()dgvItems.Rows.Clear()txtSubTotal.Clear()txtTax.Clear()txtGrandTotal.Clear()GenerateInvoiceNumber()End Sub Invoice Header Table CREATE TABLE InvoiceHeader ( InvoiceID

Automatically lower stock counts when an invoice is finalized. Print Preview: Generate a clean, printable receipt layout. 1. Database Architecture (SQL Server)

: Secures the system by requiring a username and password before access is granted. Product Management Setting Up the VB

: TextBoxes for txtGrandTotal , txtTax , and txtNetAmount . Action Row : Buttons for btnSaveAndPrint and btnClear . 5. Core VB.NET Source Code Implementation