Temporary parity audit 2026-08-04T18-27-48-440Z
Answered: The behavior can be reproduced by reducing the available width. I would start by checking the container styles and fixed minimum widths.
Questions tagged javascript
testing question
testing question body.
Events start to stack vertically when very small
Answered: eventStackingLineHeight is not something we want, conflicting events should stack in a new line 100%. we already implemented the line property before and it wasn’t helping. Now we also added event.co...
Static Security Analysis flags CWE-77 thousands of times
Answered: Basically, the only risk is injection of unsanitized HTML from user input (displayed to other users). DayPilot includes built-in XSS protection. It automatically encodes all input values that are sup...
Admin scheduler crash after moving a waitlist hold in week view
Answered: Yes, could you please create a sample project that reproduces the issue and upload it here or send it to support@daypilot.org?
Scheduler in Angular: onTimeRangeSelected popup/menu opens at wrong coordinates after horizontal scroll
Answered: The standard UI behavior for context menus is to hide them when a page scrolls (this is also what the browser does with the built-in menu). So I recommend hooking the scroll/wheel event and hiding th...
Scheduler issue from /srv/clinicflow/ui-investigation
Answered: You can attach the sample here. If you don’t want to share it publicly, you can send it to support@daypilot.org.
Show Custom Angular Material Popup/Menu Next to Time Range Selection
Answered: At this moment, the Calendar component doesn’t expose the coordinates of the time range selection. It’s an element with .calendar_default_shadow CSS class attached so you can use that to locate it an...
Djangoのアプリ開発
Answered: > Can Timeline be integrated with Django? Yes, you can use it with any framework/backend. A minimal Django template would look like this: {% load static %} <!DOCTYPE html> <html> <head> <script src="...
Implement Sticky Month View Header with Vertical Scrolling
Answered: I have added your feature request to the wishlist.
SchedulerBeforeEventExportArgs missing `text` field
Answered: This should be fixed now in the latest sandbox build (2026.2.6953).
How to show scrollbar for many in resouce calender
Answered: This feature is available in the Pro version: Fixed Column Width In the Lite version, you can use the Scheduler component with switched axes (resources on the Y axis).
Group Resource Calendar Header Column
Answered: Unfortunately, this feature is only available in the Pro version: Calendar: Column Header Hierarchy
Error init_runtime_dom_esm_bundler is not defined after update on May 20, 2026
Answered: Unfortunately, I’m not able to reproduce the error. There was no Vue-related change in the latest release (i.e. between 5.6.0 and 5.7.0). I recommend checking it with a blank project generated using ...
Issue with Cell Border Selection and Event Handling
Answered: This bug should be fixed now in the latest sandbox build (5.8.0-sandbox.830).
Highlight Today and Shorten Weekday Names in DayPilot Lite Monthly Calendar
Answered: You can use the onBeforeCellRender event handler to add a custom CSS class to selected cells. At this moment, the Lite version doesn’t support the onBeforeHeaderRender event. However, you can use a c...
Github - Invalid dependency patterns detected in package.json
Answered: If your internal system forbids loading packages using direct https link, I recommend uploading it to your private registry (TMNA Artifactory).
Calendar Rows Not Matching Event Duration
Answered: By default, the Calendar aligns event boxes with the grid. You can adjust this behavior and display the exact event duration using the useEventBoxes property.
args.alt, args.control, args.meta on drag events
Answered: Hi Leo, This is now added in the latest release ( 2026.2.6914 ). In addition to the event handlers, you can also get the current modifier key status using DayPilot.Calendar.getCoords() and DayPilot.S...
Right-click drag behaviour differences between Calendar and Scheduler
Answered: Hi Leo, It was just that the Scheduler was ahead. In the latest release ( 2026.2.6936 ), the Calendar supports the same behavior: it lets you select a time range using right mouse click. In this case...
Infinite scrolling issue, Chrome on Mac
Answered: Hi Leo, There is a problem with the overlay (non-persistent) scrollbar: it is not possible to detect its actual height. So the Scheduler uses a guess value (which is now 14 pixels). If it doesn’t mat...
Critical regression: Infinite scrolling jumps
Answered: The overlay scrollbar fallback is applied only to selected browsers (Firefox everywhere and Webkit on Mac). In Webkit-based browsers you can force a fixed scrollbar (as described here ) to solve this...
onBeforeGridLineRender on DayPilot.Gantt
Answered: Hi Leo, This event handler is now available in the Gantt chart as well (in the latest sandbox build , 2026.2.6926).
Cannot set properties of null (setting 'innerHTML') on disposed instance
Answered: This should be fixed now in the latest sandbox build (2026.2.6904).
DayPilot.Calendar.getCoords() sometimes contains wrong information
Answered: The getCoords() method returns the position in the grid. If you are not in the grid anymore, it returns the last position. So when the mouse is over all-day events, it doesn’t have a useful value.
args.alt
Answered: Hi Leo, This should be fixed now in the latest sandbox build (2026.2.6905).
DayPilot.Scheduler.onEventMoved - no way to check for original even dates
Answered: Hi Leo, For this purpose, there are two events for each action, e.g. onEventMove and onEventMoved . In onEventMove , the args.e object is the original DayPilot.Event object and the new position is av...
[Calendar] onEventResize returns incorrect args.newStart with heightSpec="BusinessHoursNoScroll" since v4.2.1
Answered: Thanks for reporting the issue. It should be fixed now in the latest sandbox build (2026.2.815).
Scheduler "Manual" scale with empty/undefined timeline error
Answered: This was an unintended side effect and the behavior is now reverted in the latest release ( 2026.2.6899 ). Please let me know if the problem persists.
events.findAll() in DayPilot.Calendar
Answered: Hi Leo, It’s now available in the latest sandbox build (2026.1.6887).