To watch out for any extra quotations ( " " ) or replacing copied ones with your own by typing them into you expression
In this case, DT.AsEnumerable.OrderBy(Function(r) dateTime.ParseExact(r( → “DateColumn” ← ).ToString, → “M/dd/yyyy hh:mm:ss tt” <-, System.Globalization.CultureInfo.InvariantCulture).CopyToDataTable *note, ← → need to be removed 