Vb.net Billing Software Source Code Fix (2025)

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

To follow this guide, you should have the following installed: (2019 or later recommended) .NET Framework 4.7.2+ SQL Server Express or Microsoft Access (for the database) vb.net billing software source code

VB.NET remains a powerful tool for rapid application development (RAD), especially for small business tools. By combining a clean UI with a structured SQL backend, you can create a reliable billing system tailored to specific needs. By combining a clean UI with a structured

Create a class named dbConfig.vb to manage your database connection string globally. Once the user clicks "Generate Invoice," the data

Use libraries like iTextSharp to export the DataGridView content into a PDF invoice.

Once the user clicks "Generate Invoice," the data must be committed to the SQL database.

To make your VB.NET billing software professional, consider adding: