It seems if I hold control for the multi range, this allows me to select a range within another range. I need to be able to do multi range but disallow conflicts. What is the best way prevent collision in the multi-range select?
The Scheduler respects the value of allowEventOverlap - if you set it to false, the overlaps will be forbidden.
Is this the only way? I had to disable the allowEventOverlap setting because it was causing false conflicts when I drag/dropped events(this was happening because I am updating the position of the start/end date on the moving event to snap to a certain time).
With the latest sandbox build (2025.3.6611), you can use a custom onTimeRangeSelecting handler to implement this rule:
DayPilot{
allowMultiRange: true,
allowEventOverlap: true,
onTimeRangeSelecting: args => {
const overlapsExisting = args.multirange.some(item => {
return DayPilot.Util.overlaps(item.start, item.end, args.start, args.end) &&
item.resource === args.resource;
});
args.allowed = !overlapsExisting;
},
// ...
}This question is more than 1 month old and has been closed. Please create a new question if you have anything to add.