void tsmi_tsmi_ExportPhonebook_Click(object sender, EventArgs e)
{
if (sfd_SaveFileDialog.ShowDialog() != DialogResult.OK)
{
return;
}
var save_file = true;
if (File.Exists(sfd_SaveFileDialog.FileName))
{
save_file = ConfirmBox.Show("File already exists", "Are you sure, you want to overwrite the selected file?") == DialogResult.OK;
}
if (save_file)
{
presenter.ExportPhoneBook(sfd_SaveFileDialog.FileName);
}
}