Vb.net Billing Software Source Code -

Before coding, you need a structured database. Create a database named BillingDB and execute these queries:

To make your VB.NET billing software professional, consider adding: vb.net billing software source code

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 Before coding, you need a structured database

Use libraries like iTextSharp to export the DataGridView content into a PDF invoice. TotalAmount) VALUES (@name