Hi, I have a TDBPlanner with a PlannerItem that spans multiple days (Delphi 7). The item correctly shows in the header of the resource but of course this doesn't stop a user creating a booking during the days that the header booking applies.
When creating an appointment item by double clicking in the planner, I want to prompt the user with a warning. How do I detect that there is an item in the resource header?
I've tried DBPlanner1.PositionProps[DBPlanner1.SelPosition].Collection.Count but that throws an error.