public override int GetHashCode() { unchecked { var hashCode = (Univer != null ? Univer.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (Institut != null ? Institut.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (Facultet != null ? Facultet.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (Kafedra != null ? Kafedra.GetHashCode() : 0); hashCode = (hashCode * 397) ^ Course; hashCode = (hashCode * 397) ^ (Group != null ? Group.GetHashCode() : 0); return(hashCode); } }