Thanks for the KB Article however I solved this problem in the folowing way:
In our case the userID is held in a local cookie so we go ahead and extract it into a private variable called uID then in the DayPilotCalendar1_BeforeEventRender section we have the following:
If e.Tag("tasksstaffid") <> uID Then
e.EventClickEnabled = False
e.EventMoveEnabled = False
e.EventResizeEnabled = False
e.EventDeleteEnabled = False
e.EventRightClickEnabled = False
e.BackgroundColor = "#999999"
e.InnerHTML = e.InnerHTML
End If