Vb.net Billing Software Source Code -

Public Class frmProducts Private Sub frmProducts_Load(sender As Object, e As EventArgs) Handles MyBase.Load LoadProducts() End Sub Private Sub LoadProducts() Try Dim dt As DataTable = Product.GetAllProducts() dgvProducts.DataSource = dt dgvProducts.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill Catch ex As Exception MessageBox.Show("Error loading products: " & ex.Message) End Try End Sub

When it comes to , you don't need flashy animations or AI integration. You need:

Multi-tier calculations covering Subtotals, Discounts, Taxes (VAT/GST), and Grand Totals.

Create an MS Access file named BillingDB.accdb with the structural tables outlined in Section 2. Place this database file inside the output compilation directory ( bin\Debug\ ). vb.net billing software source code

Below is a comprehensive guide and a modular breakdown of the source code for a standard Desktop Billing Application. 1. Project Prerequisites

Private Sub PrintDocument_PrintPage(sender As Object, e As Printing.PrintPageEventArgs) Dim font As New Font("Arial", 10) Dim titleFont As New Font("Arial", 14, FontStyle.Bold) Dim yPos As Single = 50 Dim leftMargin As Single = 50 Dim xPos As Single = leftMargin

Private Sub btnAddProduct_Click(sender As Object, e As EventArgs) Handles btnAddProduct.Click Try OpenDB() Dim query As String = "INSERT INTO tbl_Product (ProductCode, ProductName, Unit, SellingPrice, GST_Percent, StockQuantity) VALUES (@code, @name, @unit, @price, @gst, @stock)" cmd = New SqlCommand(query, conn) cmd.Parameters.AddWithValue("@code", txtCode.Text) cmd.Parameters.AddWithValue("@name", txtName.Text) cmd.Parameters.AddWithValue("@unit", cmbUnit.Text) cmd.Parameters.AddWithValue("@price", Convert.ToDecimal(txtPrice.Text)) cmd.Parameters.AddWithValue("@gst", Convert.ToDecimal(txtGST.Text)) cmd.Parameters.AddWithValue("@stock", Convert.ToDecimal(txtStock.Text)) cmd.ExecuteNonQuery() MessageBox.Show("Product saved successfully.") LoadProductsDataGrid() Catch ex As Exception MessageBox.Show("Error: " & ex.Message) Finally CloseDB() End Try End Sub Place this database file inside the output compilation

This example will create a simple form with the following features:

-- Customer Master CREATE TABLE tbl_Customer ( CustomerID INT PRIMARY KEY IDENTITY(1,1), CustomerName NVARCHAR(100), Mobile NVARCHAR(15), GST_No NVARCHAR(15) NULL, -- for B2B OpeningBalance DECIMAL(18,2) DEFAULT 0 );

End Function

If you go hunting for source code on platforms like CodeProject, GitHub, or CodeCanyon, don’t just download the first zip file you see. Look for these critical features to ensure the code is modern and maintainable:

to handle calculations separately from the UI. This allowed the system to scale as the business grew from selling simple items to complex services with taxes and discounts. The Breakthrough: The Print Command

This should give you a starting point for creating a simple billing software in VB.NET. Expand on this by adding more features as needed. 10) Dim titleFont As New Font("Arial"