How does FixedColumn avoid threaded-scrolling lag issues?

bfl

This is sort of a datatables question...

I love datatables, but for a legacy thing I am not able to use it.

We have a similar thing where you can scroll horizontally with a fixed header. This is done by having a separate div that is kept in sync on scroll.

However, with threaded scrolling (which chrome does by default), the events are apparently not supplied fast enough to allow you to have the things sync in lock-step: there is a noticable lag.

I don't see this behavior with the fixed column example, and was wondering how you go around the issue (if you even knew there was one!). For example, do you have an overlay over everything that is used to catch the scroll events, or something other approach? It is hard to tell from the js and generated html in the example, but will still look some more.

Thanks!