private void BackSale_Click(object sender, RoutedEventArgs e) { FileClass file = new FileClass(); DataBaseClass.DataBase dataBase = new DataBaseClass.DataBase(DataBaseOption.dataBaseOption); OpenFileDialog openFile = new OpenFileDialog(); openFile.Title = "Выбрать чек"; openFile.Filter = "Word documents(*.docx)|*.docx"; string saleNumber = string.Empty; TextFromFile textFromFile = file.GetTextDocWord; if (openFile.ShowDialog() == true) { if (dataBase.IssueRefund(textFromFile(openFile.FileName), ref saleNumber)) { dataBase.DeleteSale(saleNumber); MessageBox.Show("Возврат выполнен"); dataBase.OutputTable(salesDataBase, typeList.SelectedIndex); FileInfo fileInf = new FileInfo(openFile.FileName); if (fileInf.Exists) { fileInf.Delete(); } } else { MessageBox.Show("Истёк срок"); } } }