Hi Alfonsa,
Thank you for contacting Syncfusion support.
Regarding Query: Is there a method or event to refresh the calendar this way?
Flutter Calendar doesn’t have support to refresh the calendar. So, you can update the calendar by updating the property values of the calendar. As per the implementation load more method doesn’t trigger on the sample, this method triggers when calendar view changes and visible dates changed. We hope that this information helps you. Please get in touch with us if you require any further assistance. We will be happy to assist you.
Regards,
Indumathi R