Vb.net Billing Software Source Code

Public Class Product Public Property ProductID As Integer Public Property ProductCode As String Public Property ProductName As String Public Property Category As String Public Property UnitPrice As Decimal Public Property StockQuantity As Integer Public Property GSTPercentage As Decimal Public Function AddProduct() As Boolean Try Dim query As String = "INSERT INTO Products (ProductCode, ProductName, Category, UnitPrice, StockQuantity, GSTPercentage) VALUES (@Code, @Name, @Category, @Price, @Stock, @GST)" DBConnection.OpenConnection() Using cmd As New SqlCommand(query, DBConnection.conn) cmd.Parameters.AddWithValue("@Code", ProductCode) cmd.Parameters.AddWithValue("@Name", ProductName) cmd.Parameters.AddWithValue("@Category", Category) cmd.Parameters.AddWithValue("@Price", UnitPrice) cmd.Parameters.AddWithValue("@Stock", StockQuantity) cmd.Parameters.AddWithValue("@GST", GSTPercentage) Return cmd.ExecuteNonQuery() > 0 End Using Catch ex As Exception MessageBox.Show("Error: " & ex.Message) Return False Finally DBConnection.CloseConnection() End Try End Function

Imports System.Data.SqlClient Public Class clsProductDAL Dim connectionString As String = "Your_Database_Connection_String"

transaction.Commit() MessageBox.Show("Invoice saved successfully! Invoice No: " & txtInvoiceNo.Text)

Private Sub btnSaveInvoice_Click(sender As Object, e As EventArgs) Handles btnSaveInvoice.Click Try Dim db As New dbConfig() db.OpenConnection() Dim cmd As New SqlCommand("INSERT INTO Invoices (CustomerName, InvoiceDate, TotalAmount) VALUES (@name, @date, @total)", db.conn) cmd.Parameters.AddWithValue("@name", txtCustomerName.Text) cmd.Parameters.AddWithValue("@date", DateTime.Now) cmd.Parameters.AddWithValue("@total", CDec(lblGrandTotal.Text)) cmd.ExecuteNonQuery() MsgBox("Invoice Saved Successfully!", MsgBoxStyle.Information) db.CloseConnection() Catch ex As Exception MsgBox(ex.Message) End Try End Sub Use code with caution. 7. Advanced Features to Add

Let’s build a core feature: adding a product to a billing cart. vb.net billing software source code

Execute the following script in your SQL Server Management Studio (SSMS) or Visual Studio Database Tool to set up the backend structure:

: Generates sales reports and printable invoices using tools like Crystal Reports Technical Architecture

Before we get into the code, it's important to understand why VB.NET remains a strong choice for this kind of business application.

This codebase provides a highly scalable foundation for desktop retail solutions. You can easily expand it with customized business rules, taxes, discounts, and visual dashboards tailored to your specific operations. Public Class Product Public Property ProductID As Integer

Imports System.Data.SqlClient

: Create unlimited professional invoices with unique reference numbers.

Once the database connection is configured, simply click the "Start" button (or press the F5 key) in Visual Studio. The project will compile and run, allowing you to log in with the default credentials (often provided in the project's README.md file) and start exploring its features.

A standard billing database often uses these relational tables to maintain data integrity: Stack Overflow CustomerId GrandTotal InvoiceItems ProductName StockQuantity 3. Key VB.NET Code Implementation The source code typically uses events like TextChanged to update totals in real-time as users add items. Example: Product Item Class Advanced Features to Add Let’s build a core

I'll provide you with a comprehensive guide and source code for a basic billing software system in VB.NET with SQL Server database.

Let's take a closer look at a few standout projects to understand what makes them good learning resources.

Create a VB.NET Windows Forms project targeting your preferred framework.

offset += 15graphic.DrawString("-----------------------------------------------------------------", fontNormal, Brushes.Black, startX, startY + offset)offset += 20graphic.DrawString("Gross Subtotal: $" & txtGrossTotal.Text, fontNormal, Brushes.Black, startX + 200, startY + offset)offset += 20graphic.DrawString("Tax Amount: $" & txtTax.Text, fontNormal, Brushes.Black, startX + 200, startY + offset)offset += 20graphic.DrawString("Net Amount Due: $" & txtNetTotal.Text, fontBold, Brushes.Black, startX + 200, startY + offset)End SubEnd Class