private void btnDelete_Click(object sender, RoutedEventArgs e) { if (DaGr.SelectedItems.Count > 0) { string Result = ""; DelInfosList = new ObservableCollection <string>(); ComfirmWindow com = new ComfirmWindow(); com.OnSelectionBoxClosed += (obj, result) => { for (int i = 0; i < DaGr.SelectedItems.Count; i++) { string PriorityID = ""; PriorityID = (DaGr.SelectedItems[i] as T_OA_PRIORITIES).PRIORITIESID; if (!(DelInfosList.IndexOf(PriorityID) > -1)) { DelInfosList.Add(PriorityID); } } BumfClient.DocPriorityBatchDelAsync(DelInfosList); }; com.SelectionBox(Utility.GetResourceStr("DELETECONFIRM"), Utility.GetResourceStr("DELETEALTER"), ComfirmWindow.titlename, Result); } else { ComfirmWindow.ConfirmationBox(Utility.GetResourceStr("CONFIRMINFO"), Utility.GetResourceStr("SELECTERROR", "DELETE"), Utility.GetResourceStr("CONFIRMBUTTON")); } }