private void bbiExportBooksReceiptNote_ItemClick(object sender, ItemClickEventArgs e) { if (_booksInDocket.Count == 0) { return; } ssmWaiting.ShowWaitForm(); _business.LoadStockContractInformations(); CheckIfDocketIsMeetRequirement(); if (_booksNotMeetRequirement.Count > 0) { ssmWaiting.CloseWaitForm(); ShowErrorDialog(); return; } else { _business.AddBooksReceiptNote(_user.Name, _booksInDocket); } }