Returns the earliest time used by the activities stored in this repository / on this row. This method gets used for navigation (e.g. "scroll to earliest time used in the Gantt chart", "zoom out to show all activities").
the earliest time used by the activities in this repository / row (null if no activities found)
Returns the latest time used by the activities stored in this repository / on this row. This method gets used for navigation (e.g. "scroll to latest time used in the Gantt chart", "zoom out to show all activities").
the latest time used by the activities in this repository / row (null if no activities found)
An abstract base implementation of ActivityRepository that provides support for event handlers (adding, removing, firing events).
1.0