Yes, if you load a lot of DD instances in the same group you will have performance issues.
It's up to you (the implementer) to determine the things that get used in a particular interaction.
Then you can determine what drag objects need to be dealt with and when.
Does that make sense?
+ Windows: n. - The most successful computer virus, ever. +
+ A computer without a Microsoft operating system is like a dog
without bricks tied to its head +
+ A Microsoft Certified Systems Engineer is to computing what a
McDonalds Certified Food Specialist is to fine cuisine +
----- Original Message ----
> From: jameschao122 <jchao@...>
> Sent: Tuesday, November 4, 2008 8:37:08 AM
> I'm using YUI 2.5.2, and I noticed that there might be a potential performance
> issue with the
> use of the default group.
> I noticed that whenever you do a mouseDown on an DD, the DragDropMgr end up
> calling a
> refreshCache(), which ends up calling a getLocation() for all of the DDs in that
> same group.
> When you consider that all DDs are automatically put into the "default" group
> when one isn't
> specified, it can potentially be a performance nightmare.
> Am I on the right track of thinking or is there something I'm missing here?
> Yahoo! Groups Links