Or, maybe another approach: use a WTreeView and only calculate and display the visible rows of the tables. When the user scrolls, the WTreeView will show 'Loading' until the data is available. It depends a bit on your situation if this is a feasible approach. See example in the widget gallery: http://www.webtoolkit.eu/widgets/mvc-widgets/wtreeview
Press 'add rows' 20 times and scroll quickly through the table by dragging the scroll bar and you'll see the effect. Regards, Wim. 2009/11/18 OvermindDL1 <[email protected]>: > On Wed, Nov 18, 2009 at 12:28 AM, Koen Deforche <[email protected]> wrote: >> Hey Hadass, >> >> 2009/11/18 HADASS YAARI <[email protected]>: >>> I have some dynamic pages (that are built with a timer). >>> There is a lot of data in the pages - very big tables. >>> When the page is refreshing (in timeout) I start building the table and it >>> takes a lot of time (~ half a second) and meanwhile the client is stuck. >>> Is there a way to build the page in other way which won't be visible to the >>> user? >>> I thought maybe to do that with another thread that just will fill in the >>> table - but is this the right way? can I change the table in a way that >>> won't affect the page? >> >> I believe it is your only option if you want to do this outside the >> event loop, which is the only way to avoid the delay. >> >> Note that you are free to modify any part of the widget hierarchy (or >> models used by the widgets) outside the event loop as long as you >> register your attach your thread to the application instance and grab >> the application's update lock (in WApplication: attachThread() and >> updateLock()). These modifications will be synchronized with the >> browser on the next event, so you could for example chose to attach to >> the WTimer a no-op call back routine. > > Or instead of a WTimer, just keep the connection open so the server > can push updates across if you will not have too many people on at the > same time (60k or so?)? > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > witty-interest mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/witty-interest > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ witty-interest mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/witty-interest
