Thank you for writing back.
You do not have to notify the scheduler control explicitly. Your data source object should notify it. As long as it raises the ListChanged notification the control will update the collection of elements it is displaying.
If for some reason you have updated data locally and your data source object has not raised the notification, you can use the SchedulerBindingDataSource.Rebind
method. You can refer to the following section of the documentation for detailed information about the various ways to bind the control: http://docs.telerik.com/devtools/winforms/scheduler/data-binding/introduction
I hope this helps. Should you have further questions please do not hesitate to write back.