Welcome to the Angular feedback portal. We’re happy you’re here! If you have feedback on how to improve the Angular, we’d love to hear it!>
Thanks for joining our community and helping improve Syncfusion products!
In Timeline resource, getGroupIndexFromEvent is not working properly. We can not get the proper result in actionBegin event with this method when the allowMultiple property enabled. But if we disable the allowMultiple property, we can get the exact group index in actionBegin event.
Sample: