Active Questions
Highlight Calendar Row on Hovering Time Header Cell
We need to highlight the entire calendar row when the user hovers over the corresponding time header cell in the DayPilot Lite Calendar. Expected Behavior: When the user hovers over a time header cel...
Modify EventHeight and e.HTML based on a variable
Answered: OK, I’ve figured out how to do this in my case - in the function that runs when the button in the modal is clicked, set the hidden field value, then run the main function that calls commandCallBack a...
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...
Resource row clikc/double-click issue
Answered: Hi Ed, I did a couple of tests to check the issues. 1. The RowClick event seems to work fine like this: RowClickHandling="Callback"
OnRowClick="DayPilotScheduler1_OnRowClick" Code behind (C#): prote...
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?
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...
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...
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>
<sc...
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.
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
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...
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 ...
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, ...
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.
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).
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