private void OnExportСsvMenuClickEventRaised(object sender, EventArgs e)
{
SaveFileDialog sfd;
sfd = new SaveFileDialog()
{
Filter = "CSV (.csv)|*.csv", ValidateNames = true
};
if (sfd.ShowDialog() == DialogResult.OK)
{
StringBuilder sb = facade.ExportProductsToCsvFile();
StreamWriter sw = new StreamWriter(new FileStream(sfd.FileName, FileMode.Create), Encoding.UTF8);
sw.WriteLine(sb);
sw.Close();
sw.Dispose();
MessageBox.Show("Експорт завершено.");
}
}