[Qt-interest] QTableWidget Update() problem

[prashant bhutani]

Hi,

Sorry but none of those methods work.
Since, I didn't find any solution. I am thinking about shuffling of tabs
after each
update so the emptiness of the layout after update will be replaced by a
sudden
glimpse of tab shuffling.

How about that?

Regards,
Prashant Bhutani


On Mon, Nov 8, 2010 at 3:47 PM, phil prentice <philp.cheer at talktalk.net>wrote:

> HI
>  I am sure this is probably duf information, so you might want to ignore
> me.
> I just seem to remember a month or so ago I was trying to use update() to
> update a widget on the display..and it did'nt work for me either.  To fix
> this I called update like this:-
> update(rect());
> and for what ever reasons this fixed it???
>
> I'm afraid I cant remember the details..all I do remember is that it fixed
> the
> problem for me....but maybe it was'nt working for me for a different
> reason.
> Good Luck
>
> Phil
>
>
> On Monday 08 November 2010 06:40, prashant bhutani wrote:
> > Hi Everyone,
> >
> > *I have asked this question before but didn't get any answer so posting
> it
> > again.
> > I hope someone might reply this time. Sorry to others for inconvenience.*
> >
> > I am building System Monitor in Qt.
> > When I am calling my method for periodical update of processes
> > via new/child thread, an internal QWidget::update() call is being
> > generated, which according to documentation occurs and calls paintEvent()
> > and erases previous widget's area.
> > http://doc.qt.nokia.com/4.7/qwidget.html#update
> >
> > I am using QTabWidget to show processes, file_system and system
> information
> > in different tabs. To show processes, I am using QTableWidget.
> > Now, during periodical update, I am updating the QTableWidget due to
> which
> > update() is called. This call is giving me a blank tab (which before
> thread
> > working
> > showing the process table). But as soon as I switch between tabs and come
> > back
> > to process tab again, the table(new one ;) is visible again.
> >
> > Now, how can I update the table without switching in between the tabs as
> it
> > would
> > not be user-friendly if user has to switch again and again between tabs
> to
> > see the
> > update.
> >
> > Thanks in advance.
> >
> > Regards,
> > Prashant Bhutani
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