event_pid?

I have read the documentation, but I still do not understand

For a recurring event I used this method:
scheduler.attachEvent(“onEventAdded”, function(event_id,event_object){ , when I write alert(event_object.event_pid); its nothing ? how can this happen,

When can I set pid to 0 events and when not ?
What happens if I want to change a recurring event or delete,which event_pid have the sub events?

Please Help, maybe a detailed example Please THANK YOU

Hello,

You are adding event series so it’s event_pid is empty. Will be saved as 0 and can be considered 0.

docs.dhtmlx.com/doku.php?id=dhtm … the_series

Best regards,
Ilya