Day Pilot calender events get cleared off after page post back caused by Drag & Drop off of a particular event

The key here is to call DataBind() in the EventMove event handler. You need to send a fresh set of events after every change.

The general EventMove handler scheme is as follows:

if (changeIsToBeMade) {
  updateTheDatabase();
  DayPilotCalendar1.DataSource = loadEvents();
  DayPilotCalendar1.DataBind();
  DayPilotCalendar1.Update(); // required for CallBacks
}
else {
  // do nothing
}

The BeforeEventRender is than called for every event in the DataSource.

Thanks Dan.. That worked for us. Appreciate the quick response