- Criteria : KCalCore::CalFilter
- DateTimeRole : KCalCore::IncidenceBase
- ErrorCode : KCalCore::Exception
- Field : KCalCore::IncidenceBase
- IncidenceType : KCalCore::IncidenceBase
- PartStat : KCalCore::Attendee
- PeriodType : KCalCore::RecurrenceRule
- RelType : KCalCore::Incidence
- Role : KCalCore::Attendee
- Secrecy : KCalCore::Incidence
- Status : KCalCore::ScheduleMessage , KCalCore::Incidence
- Transparency : KCalCore::Event
- Type : KCalCore::Duration , KCalCore::Alarm