private void btnGiveOrder_Click(object sender, EventArgs e) { Orders orders = new Orders(); orders.ProductId = id; orders.BillId = int.Parse(lblBillID.Text); orders.Quantity = int.Parse(cmbQuantity.SelectedItem.ToString()); orders.Price = double.Parse(lblPrice.Text); var result = orderBLL.ADD(orders); DecreaseQuantity(); if (result != 0) { MessageBox.Show("Data inserted succesfully!!!"); this.Close(); } else { MessageBox.Show("Insert / FAil"); } }