The beforeCellRenderCaching property (boolean) enables caching of Scheduler grid cell properties set using onBeforeCellRender event handler. The cache is cleared during update() call. The cached properties can also be cleared using DayPilot.CellArray.invalidate() method.
true
dp.beforeCellRenderCaching = false;
Event calendar/scheduling AJAX components. Available for JavaScript/HTML5/jQuery, ASP.NET, ASP.NET MVC. Build resource booking, project management, time tracking applications, personal and shared event calendars.