On Sunday, October 30, 2011 04:20:39 am Jacek Kałucki wrote:
> Użytkownik Jacek Kałucki napisał:
> > Thishttp://dabo.codepad.org/Dtv3cpj6  example form code explains I hope
> 
> Sorry, of course RequeryWithParent should be False:
> 
> http://dabo.codepad.org/9sFYSDyU

Good thing I read both of your replies because at first it made no sense. ;-)

Ok I understand where you are coming from - and I believe I understand Paul's 
thoughts too.

In the past, Dabo use to have lot's of flicker.  And to solve that problem I 
used the lockdisplay.  It took about a second to complete an update of the 
screen no matter if there two children or 15 grand-children.  And today we 
have very little flicker and it still takes about a second to update my 
screens.  Most of the time is actually in the clearing of the screens - that 
takes time (no I don't know why).

My clients have between 300 megs to about 15 gigs of data and I see very 
little difference between them with respect to general UI performance. 

I use to complain about the performance of the update because early on I 
discovered that the retrieval of data took only 300 MS at most.  So I believed 
Dabo had the issue.  But I soon discovered that the clients did not care about 
the UI delay.  

Most of my clients are VFP converts.  What I didn't realize was VFP was taking 
just as much time to update a screen.  Therefore my converts did see anything 
different.  Their general performance was about the same and in some cases 
faster than the VFP programs I had written in the past.

So What I'm saying is I doubt there is much to gain by changing the way (or 
when) data is retrieved.  The user is most like NOT complaining about the UI 
performance.

Your suggestion of adding a delay function could work for those edge cases 
were UI performance is critical.

BTW the above is based on clients using windows.  I have trouble with Linux 
screen updates.

Johnf

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