Re: ChildChange vs ChildAdded, ChildRemoved

David Crawshaw <[email protected]> Mon, 12 Apr 2004 22:44:19 +1000
Newsgroups gmane.comp.java.xwt.core
Message-ID <[email protected]>
On 12/04/2004, at 6:12 PM, Adam Megacz wrote:
> How about numchildren++=function()?

No good. ChildAdded/Removed is useful because it gives a reference to 
the new/old child. To remain semantically sane, numchildren++= must be 
passed an integer of the new size, which is close to useless. How do 
you work out what the new child is?

The biggest use of ChildAdded/Removed is to add traps to children. It's 
how parents find out about events.

-- d