or
void RadSchedViewLoaded(object sender, RoutedEventArgs e){ var scheduleViewModel = DataContext as ScheduleViewModel; if (scheduleViewModel != null) { scheduleViewModel.RefeshAppointmentSettings(); var groupDescriptionsSource = _radSchedView.GroupDescriptionsSource; _radSchedView.ClearValue(RadScheduleView.GroupDescriptionsSourceProperty); _radSchedView.SetValue(RadScheduleView.GroupDescriptionsSourceProperty, groupDescriptionsSource); }}