private static void updatePreferenceAndClone(ref PreferencesRow p)
{
// p.EndEdit();
// p.Class = materiaBox.Text;
p.DateTime = DateTime.Now;
// p.AYearID = ayearID;
p.Year = p.DateTime.Year;
DB.TAM.PreferencesTableAdapter.Update(p);
PreferencesRow clone = Tables.CloneARow(p.Table, p) as DB.PreferencesRow;
p = clone;
p.Done = true;
DB.TAM.PreferencesTableAdapter.Update(p);
}