Rebuild datasource

Question

I have a getAppointments function that returns a list of appointments to dataSource. In onViewChanged I'm calling getAppointments again but the appointments do not get added to the screen. Do I need to rebuild the datasource? If so, how would I do that?

Indumathi Ravichandran · Answer

Hi Joris, 
 
Thank you for contacting Syncfusion support. 
 
Regarding Query: Do I need to rebuild the datasource? If so, how would I do that? 
 
For updating the dynamic changes of appointment in the calendar UI, kindly use the notifyListeners. We have a KB document for adding appointment dynamically. Please find the KB from the following link. 
 
KB link: 
https://www.syncfusion.com/kb/12300/how-to-add-the-appointments-using-the-ontap-callback-in-the-flutter-calendar 
 
Also please find the pub documentation link for notifyListeners. 
 
Pub document link: https://pub.dev/documentation/syncfusion_flutter_calendar/latest/calendar/CalendarDataSourceChangeNotifier/notifyListeners.html 
Also, Flutter calendar supports loadMoreWidgetBuilder. It displays the appointments whenever view changed in the calendar. Please find the UG document from the following link. 
 
UG link: 
https://help.syncfusion.com/flutter/calendar/load-more 
 
Please find the KB document for loadMoreWidgetBuilder from the following link. 
 
KB link: https://www.syncfusion.com/kb/12658/how-to-load-appointments-on-demand-in-flutter-calendar 
 
We hope that this helps you. Please let us know if you need further assistance. 
 
Regards, 
Indumathi R

Joris · Answer

Dear Indumathi R,Thank you for your help but unfortunately I can't get it to work. Are you able to open a private conversation so I can send you the code?

Indumathi Ravichandran · Answer

Hi Joris, 
 
Thank you for the update. 
 
Regarding Query: Unfortunately I can't get it to work. Are you able to open a private conversation so I can send you the code? 
 
We have created a new support incident under your direct trac account for “Appointments doesn’t updated in the calendar UI while view changed”. Please follow the created incident for further updates. 
 
Regards, 
Indumathi R