private void newOrderButton_Click(object sender, EventArgs e) { Order newOrder = new Order(orderDateTxtBox.Text); orderRepo.AddAOrderToList(newOrder); orderDateTxtBox.Clear(); orderDateTxtBox.Enabled = false; newOrderButton.Enabled = false; productSelectionComboBox.Enabled = true; orderLineQuantityTxtBox.Enabled = true; addToOrderBtn.Enabled = true; }