DT loading slow; FixedHeader with many columns

btz

I have DT with many columns, about ~390.

When I use FixedHeader loading of this page is (very) slow, without FixedHeader it is quite fast.

Sample page without FH:
http://tulospalvelu.biz/fh/without_fixedheader.php

Same page with FH:
http://tulospalvelu.biz/fh/with_fixedheader.php

Is there anything (besides decreasing columns :) to do?

allan

Hi btz,

Thanks hugely for the links - really helpful :-).

I've been poking around with the Firebug profiler and basically about 80% of the initialisation time with FixedHeader is spent doing the node cloning - add in the row height equalisation and removing of nodes and I think that is where all the time is going.

I think given the way that FixedHeader is doing the cloning at the moment is probably inefficient when dealing with large numbers of columns, primarily due to the way the jQuery clone self references. This is something that I will most certainly look at improving.

Regards,
Allan