private void cmdAddProduct_Click(object sender, RoutedEventArgs e) { Boolean result = CHelper.ValidateLookup(lblCustomer, uCustomer, false); if (!result) { return; } populateExcludeDocSet(); CCriteriaBillSummaryItem cr = new Criteria.CCriteriaBillSummaryItem(); cr.SetActionEnable(false); cr.SetDefaultData(vw); cr.Init("1"); WinMultiSelection w = new WinMultiSelection(cr, CLanguage.getValue("bill_summary_item")); w.ShowDialog(); if (w.IsOK) { vw.AddAccountDocReceipts(convertToReceiptItem(w.SelectedItems)); calculateReceiptTotal(); vw.IsModified = true; } }