DayPilot Pro for ASP.NET WebForms 2024.1.3843

Release date: March 28, 2024


  • [Scheduler] Optimized event rendering when allowMultiMove or allowMultiResize is enabled (Scheduler). (build 3838)
  • [Scheduler] When resizing multiple events, the overlaps are not checked against any of the resized event sources (Scheduler). (build 3838)
  • [Calendar] Allow an event to be displayed in multiple columns in Resources mode. (build 3838)
  • The ResizeObserver, used in the Calendar and Scheduler for updating width- and height-related calculations, is debounced to allow smoother resizing. This should also minimize "ResizeObserver loop completed with undelivered notifications." errors. (build 3838)
  • [Month] returns events in the order used for rendering (instead of the original order of the data source). (build 3838)
  • [Scheduler] Link rendering optimization - visible links skipped during scrolling (Scheduler) (build 3838)
  • [Calendar] The Calendar header width set using CSS for more fluid animation during DOM-based resizing. (build 3838)
  • [Scheduler] DayPilot.Row.cells.totalDuration(filter) - filter parameter added (Scheduler) (build 3838)
  • [Scheduler] Significantly improved rendering performance when displaying a large number of links in the Scheduler. (build 3838)


  • [Calendar] Start and end time of time range selection fixed in Calendar with hidden non-business hours or shifted dayBeginsHour. (build 3838)
  • [Calendar] Calendar scroll label position calculation fixed on touch devices (when fixed column width is used) ["Cannot read properties of undefined (reading 'clientWidth')"] (build 3838)
  • [Scheduler] DayPilot.Scheduler.links.add() fixed when the parameter is a DayPilot.Link object ("Uncaught TypeError: Cannot read properties of undefined (reading 'from')" error) (build 3838)
  • [Calendar] Time header active areas not rendering properly - fixed (Calendar). (build 3838)
  • [Scheduler] Separator tooltip fixed (Scheduler). (build 3838)
  • [Scheduler] Rendering of links related to events created using events.add() fixed (Scheduler). (build 3838)
  • [Scheduler] Link rendering fixed (when there are events in the data set that don't belong to any Scheduler row). (build 3838)
  • [Calendar] DayPilot Calendar error fixed: "Cannot read properties of null (reading 'style')" (build 3838)
  • [Scheduler] Event HTML should be rendered with higher priority if both `html` and `text` are specified - regression fixed (Scheduler). (build 3838)