private void btnSubmitQuantity_Click(object sender, EventArgs e) { if (lstMenu.SelectedItems.Count <= 0) { MessageBox.Show("Please select an item"); return; } MenuItem selectedItem = lstMenu.SelectedItems[0].Tag as MenuItem; selectedItem.Quantity = Convert.ToInt32(numQchange.Value); menuItemSrv.AddStockAmount(selectedItem); numQchange.Value = 0; FillListView(); }