My goal is mark with frame some "linked" task. When user select one appointment, then linked appointmemts have to be marked with frame.
I have changed the OrientedAppointmentItemStyleSelector.HorizontalStyle - template of AppointmentItem.
So, my problem is refresh the view after changing Appointment.LinkedVisibility property, because only selected Appointment is change the drawing after updating.
P.S. this approach is not applicable for me https://www.telerik.com/forums/need-to-refresh-scheduleview
Can you help me to force redraw for all appointments?