Vb.net — Billing Software Source Code

-- Product Master CREATE TABLE tbl_Product ( ProductID INT PRIMARY KEY IDENTITY(1,1), ProductCode NVARCHAR(50) UNIQUE, ProductName NVARCHAR(200), UnitPrice DECIMAL(18,2), GST_Percent DECIMAL(5,2), -- 5, 12, 18, 28 StockQuantity INT DEFAULT 0, ReorderLevel INT DEFAULT 5 );

cmdDet.Parameters.AddWithValue("@Total", total)cmdDet.ExecuteNonQuery()End Using

BillingSoftware/ ├── BillingSoftware.sln ├── BillingSoftware/ │ ├── frmLogin.vb │ ├── frmDashboard.vb │ ├── frmBilling.vb │ ├── frmProducts.vb │ ├── frmCustomers.vb │ ├── frmReports.vb │ ├── clsDatabase.vb │ ├── clsBillingEngine.vb │ ├── modGlobals.vb (Public variables – LoggedInUser, CompanyName) │ ├── App.config (Connection string) │ └── bin/Debug/ (Executable + DLLs) vb.net billing software source code

A DataGridView named dgvInvoice with 5 columns: ProdID , Product Name , Price , Qty , and Total . Billing Summary Panel: TextBox named txtSubTotal (Read-only). TextBox named txtTax (Default text: 10 for 10%). TextBox named txtDiscount (Default text: 0 ). TextBox named txtGrandTotal (Read-only).

: Labels/Textboxes for txtSubTotal , txtTax , and txtGrandTotal . Action Buttons : btnAddToCart , btnSaveInvoice , and btnClear . 4. Complete VB.NET Billing Source Code -- Product Master CREATE TABLE tbl_Product ( ProductID

-- Invoice Details (Line Items) CREATE TABLE tbl_InvoiceDetails ( DetailID INT PRIMARY KEY IDENTITY(1,1), InvoiceNo INT FOREIGN KEY REFERENCES tbl_Invoice(InvoiceNo), ProductID INT FOREIGN KEY REFERENCES tbl_Product(ProductID), Quantity INT, Price DECIMAL(18,2), GST_Percent DECIMAL(5,2), LineTotal DECIMAL(18,2) );

This article will explore what makes VB.NET ideal for billing systems, the core modules you need, a breakdown of source code architecture, database design, and how to extend open-source projects to fit real-world business needs. TextBox named txtDiscount (Default text: 0 )

This implementation uses . The interface requires the following controls:

Creating billing software in is a common academic and professional project used to manage sales, inventory, and customer records. It typically involves a desktop application built on the .NET Framework Windows Forms for the interface and a database like SQL Server for data storage. Core Modules of a Billing System

A huge advantage for any developer is the wealth of open-source and educational projects available. Studying these can significantly accelerate your learning and provide a clear roadmap for your own development.