private void UpdateIsbn(BookInfo info)
{
if (info == null)
return;
NamedMutliLingualValue isbnData;
string isbn = null;
if (_dataset.TextVariables.TryGetValue("ISBN", out isbnData))
{
isbn = isbnData.TextAlternatives.GetBestAlternativeString(WritingSystemIdsToTry); // Review: not really multilingual data, do we need this?
}
info.Isbn = isbn ?? "";
}