private void button_del_Click(object sender, RoutedEventArgs e) { if (listView_key.SelectedItems.Count > 0) { List <UInt32> dataIDList = new List <uint>(); foreach (ManualAutoAddDataItem info in listView_key.SelectedItems) { dataIDList.Add(info.ManualAutoAddInfo.dataID); } cmd.SendDelManualAdd(dataIDList); } }