Hi Trevor, Thanks for making that change. I've been following up a bit more on the behavior of GetDataForLine being called in repeated cycles for the number of lines in the datagrid. As a reminder, the datagrid has 11 visible lines, GetDataForLine gets called once for lines 1-12, then a second time for lines 1-2 again, and occasionally a third time for lines 1-2.
I think I know the reason this is happening. The first GetDataForLine cycle happens when I set the dgProps["Columns"] property of the datagrid. The second cycle happens when I set the dgNumberOfRecords property. There's a possible third cycle because sometimes I set the dgProps["Sort By Column"] property. I have tried setting the dgNumberOfRecords to empty, zero, or NULL before any of the above properties are changed but it doesn't seem to make any difference. Hoping you may have a recommendation as to how to avoid these multiple cycles! Thanks, Pete On Mon, Mar 12, 2012 at 7:01 AM, Trevor DeVore <li...@mangomultimedia.com>wrote: > On Thu, Mar 8, 2012 at 2:47 PM, Jérôme Rosat <jro...@mac.com> wrote: > > > Trevor, yes I'm going to try. > > > > But I think it would be a good idea if you could change your stack in the > > lesson "Displaying Large Amounts of Data" to demonstrate the performance > of > > LiveCode. > > > > I've updated the stack to use the new technique. You can download it from > the same url. I'm on a faster machine testing but here are the times I get: > > Opening movies cursor took 150 milliseconds > > ------- > > Drawing list took 81 milliseconds > > ------- > > > -- > Trevor DeVore > Blue Mango Learning Systems > www.clarify-it.com - www.screensteps.com > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > > -- Pete Molly's Revenge <http://www.mollysrevenge.com> _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
