Vb.net Billing Software Source Code ✦ Ultimate

-- Invoice Master Table (One invoice per record) CREATE TABLE tbl_Invoice_Master ( InvoiceNo INT PRIMARY KEY IDENTITY(1,1), InvoiceDate DATETIME DEFAULT GETDATE(), CustomerID INT FOREIGN KEY REFERENCES tbl_Customers(CustomerID), SubTotal DECIMAL(18,2), TaxAmount DECIMAL(18,2), GrandTotal DECIMAL(18,2) );

This specialized billing system, featured in academic research, was developed for bar owners to automatically calculate customer bills after sales. It was originally coded using VB.NET 2012 with MS Access 2003 as the database. Key characteristics include sign-in/sign-out, product inventory management, point-of-sale transactions, sales receipt generation, sales records listing, and user management.

Private Sub btnCustomers_Click(sender As Object, e As EventArgs) Handles btnCustomers.Click Dim customers As New frmCustomers() customers.ShowDialog() End Sub vb.net billing software source code

The main billing interface requires standard WinForms controls configured for high-speed data entry (keyboard navigation). Control Mapping Table Control Type Control Name Purpose / Configuration cmbCustomer Selects registered customers from the database. ComboBox cmbProduct Selects available inventory items. TextBox txtPrice Displays unit price ( ReadOnly = True ). TextBox txtQuantity Accepts user input for item count. Button btnAddItem Appends selected product variables to the grid. DataGridView dgvInvoiceItems Columns: Product ID, Name, Unit Price, Qty, Total. TextBox txtGrossTotal Summarizes item totals ( ReadOnly = True ). TextBox txtTax User-defined tax percentage input (e.g., 15 for 15%). TextBox txtNetTotal Final payable calculation ( ReadOnly = True ). Button btnSavePrint Commits transaction to DB and executes print pipeline. 4. Complete Application Source Code

' Assume GST is stored per product Dim gstPercent As Decimal = Convert.ToDecimal(row.Cells("GSTPercent").Value) Dim lineAmount As Decimal = Convert.ToDecimal(row.Cells("Amount").Value) totalTax += (lineAmount * gstPercent / 100) Next -- Invoice Master Table (One invoice per record)

A complete VB.NET billing solution typically includes:

-- Products Table CREATE TABLE Products ( ProductID INT PRIMARY KEY IDENTITY(1,1), ProductCode NVARCHAR(50) UNIQUE NOT NULL, ProductName NVARCHAR(100) NOT NULL, Category NVARCHAR(50), UnitPrice DECIMAL(10,2) NOT NULL, StockQuantity INT NOT NULL DEFAULT 0, GSTPercentage DECIMAL(5,2) DEFAULT 0, CreatedDate DATETIME DEFAULT GETDATE() ); TextBox txtPrice Displays unit price ( ReadOnly = True )

If you require (such as Crystal Reports or RDLC)

In the late 1990s and early 2000s, a quiet revolution took place in back-offices and small retail shops. It was the era of the Rapid Application Development (RAD)