OnBeforeItemModifyEvent - Skip OnModify Trigger in table

Hi to all,

I'm using NAV 2017 and I'm trying to create simple example with OnBeforeItemModifyEvent. I have create CU, where I have created my function

LOCAL [EventSubscriber] BeforeItemModify(VAR Rec : Record Item;VAR xRec : Record Item;RunTrigger : Boolean)

Rec."Unit Price":=Rec."Unit Price"+1;
RunTrigger:=FALSE;

But I don't want Trigger that it is OnModify in T: Item to be executed. How I can skip that???

Any advice,

Thanks a lot,