: Generates summaries of daily sales, stock-in-hand, and profit/loss statements, often using tools like Crystal Reports .
Private Sub btnAdd_Click(sender As Object, e As EventArgs) Handles btnAdd.Click If txtProductName.Text = "" Or txtPrice.Text = "" Then MessageBox.Show("Please enter product details.") Exit Sub End If Dim qty As Integer = Val(txtQty.Text) Dim price As Double = Val(txtPrice.Text) Dim subTotal As Double = qty * price ' Add row to DataGridView dgvInvoice.Rows.Add(txtProductName.Text, price, qty, subTotal) ' Update Grand Total CalculateTotal() ClearInputs() End Sub Use code with caution. 3. Calculating the Final Bill vbnet+billing+software+source+code
: Stores essential customer details like name, address, contact information, and purchase history. : Generates summaries of daily sales, stock-in-hand, and