Active Questions
Can't seem to be able to install with npm
Answered: We are upgrading the infrastructure and there was a temporary issue that has been resolved now. Please let me know if the problem persists.
Guest calendar
Answered: Please take a look at this tutorial: JavaScript Calendar in Read-Only Mode (Open-Source)
on gantt row expand
Answered: Since version 2025.1.5435, it is possible to handle these actions using these new events: onRowCollapse onRowExpand
How to drag events to queue on iPad, currently it does not trigger events
How to drag events to queue on iPad, currently it does not trigger events
change the Gantt link shape
Answered: Yes, you can use the same property (linkShape) in the Gantt Chart.
Is it possible to add custom html and css to the daypilot gantt?
Answered: You can use the onBeforeTaskRender event handler to customize the task boxes. This event will let you set custom color easily. {
onBeforeTaskRender: (args) => {
args.data.box.backColor = "#cc...
How to handle the progressBar per row in scheduler Angular
Answered: You can take a look at the JavaScript Scheduler: Resource Utilization Chart for Rows tutorial:
is it possible to edit the event
Answered: Please see here: https://forums.daypilot.org/question/6575/is-it-possible-to-edit-gantt-chart-event
Is it possible to edit gantt chart event
Answered: Yes, it is possible to activate inline editing mode for the row headers, or you can open a modal dialog with task details on click (see Task Editing).
ExcelJS is not an optional property in the scheduler config
Answered: Thanks for reporting the problem. This issue has been fixed in a special release (2025.1.6429), which is now available.
overriding event start/end in moving to snap to a certain time isn't being reflected in the event overlap handling
Answered: It looks like you are using an older version - could you please give it a try with the latest release?
How to groupBy?
Answered: You can create custom time header segments using the method described in this tutorial: JavaScript Scheduler: Custom Time Header Segments
Excel export for Gantt?
Answered: Hi Leo, Sorry for the delay. Gantt export to Excel in the works and it will be available soon.
Error constructing DayPilot.Date()
Answered: Have you modified the source code? Or maybe you have overwritten the DayPilot.Date object? Because all this should work fine - you can also test it in the JavaScript console in the online demo.
How to access args.filter value in the onBeforeTimeHeaderRender event of DayPilot Scheduler
Answered: The filter param is only available in the onEventFilter event handler. The best way would be to store the filter value in a special variable outside of the Scheduler object. This approach is used for...
BusinessHoursNoScroll not rendering args.start correctly
Answered: I confirm the bug. It should be fixed now in the latest sandbox build. The fix will be included in the next release.
Daypilotmenu context for day calendar NOT event
Answered: For the time range selection/grid cell right clicks, you can define the context menu using the ContextMenuSelectionID property. See also Time Range Context Menu.
Filter hours
Answered: In the Lite version, you can use this config: {
businessBeginsHour: 8,
businessEndsHour: 21,
heightSpec: "BusinessHoursNoScroll"
} This will display only the specified hours, but there will...
Facing issue in calendar vertically scrolling with page scrolling
Answered: It is necessary to set a fixed position of the calendar in the page. You can do that by fixing the parent element and setting the height of the calendar to 100%. This way, you will be able to avoid t...