public int DajSifru(IDomenskiObjekat ido) { string upit = @"select MAX(" + ido.ImeKljuca() + ") from " + ido.NazivTabele() + ""; SqlCommand komanda = new SqlCommand(upit, konekcija, transakcija); try { try { int sifra = Convert.ToInt32(komanda.ExecuteScalar()); return(sifra + 1); } catch (Exception) { return(1); } } catch (Exception) { throw new Exception("Greška!"); } }