Questions Tagged how-to
Events displayed only on 30 minute boundaries?
I am using a Day calendar and adding events to it. It seems like my events are always “snapped” to half-hour boundaries. E.g., if I have an event with a start time of 10:18 and end time of 11:18, on ...
Issue with Hiding Non-Business Hours Spanning Two Days in DayPilot Scheduler
Answered: The onIncludeTimeCell logic should look like this (it works for two days and scale="Hours"): onIncludeTimeCell: (args) => {
const businessStart = 21; // 9 PM (21:00)
const businessEnd = 6; ...
Guest calendar
Answered: Please take a look at this tutorial: JavaScript Calendar in Read-Only Mode (Open-Source)
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
on gantt row expand
Answered: Since version 2025.1.5435, it is possible to handle these actions using these new events: onRowCollapse onRowExpand
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:
Hovering a draggable event and change row background-color
Answered: Sorry for the delay. This can be done like this: const scheduler = new DayPilot.Scheduler("scheduler", {
onRowMouseOver: args => {
if (app.dragging) {
args.row.cells.all()....
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).
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
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...
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...
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.
selecting a date in the navigator
Answered: I was able to manually select the current date in javascript inside the form using dp_navigator.select(new Date()); thanks
Gantt Chart Issue with Link Shape to RightAngled per version 2025.1.6345
Answered: The linkShape property is now available in the Gantt chart in the latest sandbox build (2025.1.6403).
Is it possible to implement timeheader with 3 hours as a part, but cell with 15 minutes as a part
Answered: Yes, this is possible. If the built-in time header units don’t work for you, you can define custom segments, as described in the following tutorial: JavaScript Scheduler: Custom Time Header Segments
Is there a way to display total quantities from events in the Scheduler Scale header, aggregated both weekly and monthly
Answered: Yes, you can use the onBeforeTimeHeaderRender event handler to customize the time header. There is a tutorial available that shows how to calculate the summary/utilization details using methods like ...
Frozen rows ASP
Answered: Unfortunately, the frozen rows feature is only available in the JavaScript version.
Issue when tapping multiple cells from Ipad.
Answered: This problem should be fixed now in the latest sandbox build (2025.1.6400).
Sort events in combination of 'Sort' and 'Line'
Answered: The minLine property is now available as an experimental feature in the latest sandbox build (2025.1.6407).
Prevent refresh of date to today
Answered: Sorry for the delay! It looks like you might reset the StartDate value at some point. I recommend checking Page_Load and the <DayPilot:DayPilotNavigator> tag. It also depends how you refresh the page...
Crerating events side by side
Answered: There was an issue that prevented double click on calendar cells next to existing events from working. It was fixed in version 2025.1.6333, so make sure that you are using the latest release. I assum...
Is it possible to hide the parents and leave the children with its events visible
Answered: You can use the row filter to hide selected rows in the Scheduler. If you set rowFilterParentsAlwaysVisible to false, the parent rows that don’t match the filter will be hidden as well.
Month name as title for DayPilot Month
Answered: For PostBack updates, you can place a label control above the calendar and set its text from code behind based on DayPilotMonth.StartDate value. If you change the date using a callback, you can use A...
Block Overlay / Bubble for Selecting a new event area
Answered: You can use active areas to insert blocks with custom start/end inside cells. You can find an example here (this tutorial shows how to block selected time ranges): JavaScript Scheduler: Disabling Cus...
New Event Background border
Answered: Sorry for the delay! This is hard to guess, but probably it’s some custom CSS. You can try turing the global CSS of temporarily to see if the problem disappears and use browser developer tools to ins...
right to left in month
Answered: Unfortunately, RTL direction is not supported in the Scheduler at the moment.
New Event Position
Answered: The vertical position of the modal dialog can be set using the top property. By default, it is set to 20 (pixels). You can increase it as needed. The background elements appear above the modal dialog...
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