public override int GetHashCode() { unchecked { var hashCode = Id; hashCode = (hashCode * 397) ^ (AdresAdresata != null ? AdresAdresata.GetHashCode() : 0); hashCode = (hashCode * 397) ^ PoczatekObslugi.GetHashCode(); hashCode = (hashCode * 397) ^ KoniecObslugi.GetHashCode(); hashCode = (hashCode * 397) ^ (Historia != null ? Historia.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (Status != null ? Status.GetHashCode() : 0); return(hashCode); } }