private void show_TTNitem(int?TTN_ID) { if (ucTTNitem == null) { ucTTNitem = new uc_TTN_item(thisName); ucTTNitem.btn_Cancel.Click += new RoutedEventHandler(ucTTNitem_btn_Cancel_Click); ucTTNitem.btn_Update.Click += new RoutedEventHandler(ucTTNitem_btn_Update_Click); } ucTTNitem.configure(ucPconfig, TTN_ID); if (ucw == null) { ucw = new cwnd_UC(); } ucw.configure("Приемка", ucTTNitem); ucw.Show(); }