private void cmbRoomNumber_SelectedIndexChanged(object sender, EventArgs e)//TODO: BUNU YAP SANA HELAL HALÄ°S :) { lvProducts.Items.Clear(); var product = cbo.GetProductsOfCustomer(Convert.ToInt32(cmbRoomNumber.Text)); lvProducts.Items.Add(product.Id.ToString()); lvProducts.Items[0].SubItems.Add(product.SoldToast.ToString()); lvProducts.Items[0].SubItems.Add(product.SoldHamburger.ToString()); lvProducts.Items[0].SubItems.Add(product.SoldChips.ToString()); lvProducts.Items[0].SubItems.Add(product.SoldCola.ToString()); lvProducts.Items[0].SubItems.Add(product.SoldFanta.ToString()); lvProducts.Items[0].SubItems.Add(product.SoldSoda.ToString()); }