Vb.net Billing Software Source Code [patched] -

: Generate sales reports, inventory reports, customer statements, profit/loss statements, and transaction histories—often exportable to PDF, Excel, or printed directly.

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: This desktop application on GitHub uses an OLEDB connection to handle supermarket data efficiently. vb.net billing software source code

Developing a robust billing and invoicing system is a foundational requirement for many enterprise desktop applications. Visual Basic .NET (VB.NET) paired with Windows Forms (WinForms) remains a highly efficient framework for building these data-centric business applications due to its rapid application development (RAD) capabilities and native Windows integration.

CREATE TABLE Customers ( CustomerID INT IDENTITY(1,1) PRIMARY KEY, CustomerName VARCHAR(100) NOT NULL, Phone VARCHAR(20), TotalBalance DECIMAL(18,2) DEFAULT 0.00 ); CREATE TABLE Products ( ProductID INT IDENTITY(1,1) PRIMARY KEY, ProductName VARCHAR(100) NOT NULL, Price DECIMAL(18,2) NOT NULL, StockQuantity INT NOT NULL ); CREATE TABLE Invoices ( InvoiceNo INT IDENTITY(1001,1) PRIMARY KEY, InvoiceDate DATETIME DEFAULT GETDATE(), CustomerID INT FOREIGN KEY REFERENCES Customers(CustomerID), GrossAmount DECIMAL(18,2), TaxAmount DECIMAL(18,2), NetAmount DECIMAL(18,2) ); CREATE TABLE InvoiceDetails ( ID INT IDENTITY(1,1) PRIMARY KEY, InvoiceNo INT FOREIGN KEY REFERENCES Invoices(InvoiceNo), ProductID INT FOREIGN KEY REFERENCES Products(ProductID), Quantity INT NOT NULL, UnitPrice DECIMAL(18,2) NOT NULL, TotalPrice DECIMAL(18,2) NOT NULL ); Use code with caution. 2. Database Connection Wrapper Module : This desktop application on GitHub uses an

: txtInvoiceNo , txtCustomer , txtProductCode , txtProductName , txtUnitPrice , txtQuantity .

Once the cart is complete, a "Checkout" button would validate the cart, collect customer details (or select an existing one), and then call a SaveInvoice method in your BLL. This method would use database transactions to: Once the cart is complete

Before writing code, you need a backend. A simple SQL Server schema might include:

' Fetch records straight from the UI transaction grid loopFor Each row As DataGridViewRow In dgvInvoice.RowsDim name As String = row.Cells("Item").Value.ToString()Dim price As String = row.Cells("Price").Value.ToString()Dim qty As String = row.Cells("Qty").Value.ToString()Dim total As String = row.Cells("Total").Value.ToString()