| Class | Description |
| ActivityAreaUIElement | Area in which time slots, appointments, and/or holidays are displayed. |
| ActivityGrabHandleUIElement | Displays a square on the left and/or right side of a selected AppointmentUIElement to indicate that it responds to user interface actions. |
| ActivityIndicatorUIElementBase | Base class for appointment/holiday indicator elements. |
| ActivityScrollButtonUIElement | Encapsulates the buttons that are displayed when not all activities can be displayed within the ActivityAreaUIElement. |
| ActivityScrollButtonUIElement.ActivityScrollButtonAccessibleObject | The Accessible object for a column. |
| ActivityTextUIElementBase | Base class for the AppointmentUIElement. HolidayNameUIElement classes. |
| ActivityUIElementBase | Base class for the AppointmentUIElement and HolidayUIElement classes. |
| ActivityUIElementBase.ActivityAccessibleObjectBase | The Accessible object for a column. |
| AppointmentDisplaySettings | Exposes properties which control the manner in which the constituent elements of the AppointmentUIElement are displayed. |
| AppointmentIndicatorUIElementBase | Base class for appointment indicator elements. |
| AppointmentLocationUIElement | Displays the value of the Location property. |
| AppointmentTextUIElementBase | Displays text for the AppointmentUIElement. |
| AppointmentTimeUIElement | Displays the value of the StartDateTime and EndDateTime properties for an AppointmentUIElement. |
| AppointmentUIElement | Represents an Appointment in the user interface. |
| AppointmentUIElement.AppointmentAccessibleObject | The Accessible object for a column. |
| ClientAreaUIElement | Represents the client area of the UltraTimelineView, which is the area inside the borders and scrollbars. |
| ColumnHeaderAreaUIElement | Area in which the ColumnHeaderUIElements are displayed. |
| ColumnHeaderUIElement | Displays the formatted date/time for an associated TimeSlotUIElement in the UltraTimelineView control. |
| ColumnHeaderUIElement.ColumnHeaderAccessibleObject | The Accessible object for a column. |
| ContainerUIElementBase | Base class for elements that do not draw anything onto the control. |
| DateNavigationButtonUIElement | Encapsulates the buttons that are displayed when the DateNavigationButtonVisibility property resolves to a value other than 'Hide'. |
| DateNavigationButtonUIElement.DateNavigationButtonAccessibleObject | The Accessible object for a column. |
| DateTimeContinuationUIElement | Draws an arrow which indicates that an activity extends to a date/time that is not currently within the viewable area of the control. |
| DateTimeIntervalLabelAreaUIElement | Area in which the ColumnHeaderUIElements are displayed. |
| DateTimeIntervalLabelUIElement | Displays the label for a DateTimeInterval in the UltraTimelineView control. |
| DateTimeIntervalLabelUIElement.DateTimeIntervalLabelAccessibleObject | The Accessible object for a column. |
| HolidayDateUIElement | Displays the start and end dates for a Holiday property. |
| HolidayNameUIElement | Displays the value of the Name property. |
| HolidayUIElement | Represents a Holiday in the user interface. |
| HolidayUIElement.HolidayAccessibleObject | The Accessible object for a column. |
| HorizontalScrollSettings | Defines the range and increments for the horizontal scrollbar displayed by the UltraTimelineView control. |
| OwnerHeaderUIElement | Displays the caption for an Owner. in the UltraTimelineView control. |
| OwnerHeaderUIElement.OwnerHeaderAccessibleObject | The Accessible object for an Owner. |
| OwnerUIElement | Area in which the OwnerHeaderUIElement and ActivityAreaUIElement is displayed. |
| RecurrenceIndicatorUIElement | Indicates that the associated Appointment is a member of a recurrence. |
| ReminderIndicatorUIElement | Indicates that the associated Appointment has an enabled Reminder. |
| TimelineViewHeaderElementBase | Base class for the OwnerHeaderUIElement and ColumnHeaderUIElement classes. |
| TimelineViewHeaderElementBase.HeaderAccessibleObjectBase | The Accessible object for a column. |
| TimeSlotUIElement | Area which represents a range of time whose duration is defined by the PrimaryInterval, and optionally is associated with a specific Owner. |
| UltraTimelineViewUIElement | UIElement-derived class which represents the UltraTimelineView control in the user interface. |