private void btnDelete_Click(object sender, RoutedEventArgs e)
        {
            if (dgArchives.SelectedItems.Count > 0)
            {
                string Result   = "";
                string errorMsg = "";
                archivesDelID = new ObservableCollection <string>();
                ComfirmWindow com = new ComfirmWindow();
                com.OnSelectionBoxClosed += (obj, result) =>
                {
                    for (int i = 0; i < dgArchives.SelectedItems.Count; i++)
                    {
                        string MeetingTypeID = "";
                        MeetingTypeID = (dgArchives.SelectedItems[i] as T_OA_ARCHIVES).ARCHIVESID;
                        if (!(archivesDelID.IndexOf(MeetingTypeID) > -1))
                        {
                            archivesDelID.Add(MeetingTypeID);
                        }
                    }

                    client.DeleteArchivesAsync(archivesDelID, errorMsg);
                };
                com.SelectionBox(Utility.GetResourceStr("DELETECONFIRM"), Utility.GetResourceStr("DELETEALTER"), ComfirmWindow.titlename, Result);
            }
            else
            {
                ComfirmWindow.ConfirmationBox(Utility.GetResourceStr("CONFIRMINFO"), Utility.GetResourceStr("SELECTERROR", "DELETE"), Utility.GetResourceStr("CONFIRMBUTTON"));
            }
        }