| Author |
Combobox Performance Problems
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| Bob Amaral 2006-03-06, 8:23 pm |
| I'm using Dbase v2.5 and I notice that on my development machine the
pulldown portion of the combobox (style=2) becomes extremely slow to respond
to mouse clicks to select an item. These comboboxes only have 2 or 3
entries in them and the datasource is an array. Sometimes the response is ok
for a while but if I just keep clicking on the control it suddenly hangs for
up to 10 seconds and I can't highlight an item for selection. I noticed
that the cpu activity associated with dbase runtime drops to 0 % while
waiting for the mouse click to register. I have no problemd if I select an
entry using the up or down arrow keys only when using the mouse. I've run
the same application on other machines with similar configurations without
any problems. Now I have a customer that is experiencing the same problem
with the combobox except their system just hangs as soon as the comboxbox
pulldown is displayed using the mouse. I've seen some threads talking
about MS spyware or even Norton Antivirus being a problem with the combobox.
I'm not running MS Spyware but I am running Norton Antivirus on all my
machines. Has anyone else experienced this specific problem with the
combobox? I understand the version 2.6 was suppose to fix the problem with
MS Spyware. Did it also fix the problem with Norton Antivirus? Has anyone
experienced any performance problems/bugs with combobox with Dbase version
2.6?
Thanks
Bob
| |
| Chris Stoeckert 2006-03-07, 3:23 am |
| Hi Bob,
As I commented in a couple of previous threads, I have had the problem you
described since dB2k (thru 2.5) -- but only on the development machine
(currently a P4 with 512MB RAM). Once the programs are deployed to another
machine, the problem no longer exists. I notice the problem not only in the
program I am writing, but in the dBASE Navigator & Designers (e.g. Table
Designer, Type & Index). I have uninstalled Spybot, Adware and a couple of
other anti- programs without any significant improvement.
I hope you are able to find the solution to this problem.
Chris
"Bob Amaral" <bamaral@comcast.net> wrote in message
news:aCVa76YQGHA.2320@news-server...
> I'm using Dbase v2.5 and I notice that on my development machine the
> pulldown portion of the combobox (style=2) becomes extremely slow to
> respond to mouse clicks to select an item. These comboboxes only have 2
> or 3 entries in them and the datasource is an array. Sometimes the
> response is ok for a while but if I just keep clicking on the control it
> suddenly hangs for up to 10 seconds and I can't highlight an item for
> selection. I noticed that the cpu activity associated with dbase runtime
> drops to 0 % while waiting for the mouse click to register. I have no
> problemd if I select an entry using the up or down arrow keys only when
> using the mouse. I've run the same application on other machines with
> similar configurations without any problems. Now I have a customer that is
> experiencing the same problem with the combobox except their system just
> hangs as soon as the comboxbox pulldown is displayed using the mouse.
> I've seen some threads talking about MS spyware or even Norton Antivirus
> being a problem with the combobox. I'm not running MS Spyware but I am
> running Norton Antivirus on all my machines. Has anyone else experienced
> this specific problem with the combobox? I understand the version 2.6 was
> suppose to fix the problem with MS Spyware. Did it also fix the problem
> with Norton Antivirus? Has anyone experienced any performance
> problems/bugs with combobox with Dbase version 2.6?
>
>
> Thanks
>
> Bob
>
| |
| Todd Kreuter 2006-03-07, 7:23 am |
| Bob Amaral wrote:
>
> I'm using Dbase v2.5 and I notice that on my development machine the
> pulldown portion of the combobox (style=2) becomes extremely slow to respond
> to mouse clicks to select an item. These comboboxes only have 2 or 3
> entries in them and the datasource is an array. Sometimes the response is ok
> for a while but if I just keep clicking on the control it suddenly hangs for
> up to 10 seconds and I can't highlight an item for selection. I noticed
> that the cpu activity associated with dbase runtime drops to 0 % while
> waiting for the mouse click to register. I have no problemd if I select an
> entry using the up or down arrow keys only when using the mouse. I've run
> the same application on other machines with similar configurations without
> any problems. Now I have a customer that is experiencing the same problem
> with the combobox except their system just hangs as soon as the comboxbox
> pulldown is displayed using the mouse. I've seen some threads talking
> about MS spyware or even Norton Antivirus being a problem with the combobox.
> I'm not running MS Spyware but I am running Norton Antivirus on all my
> machines. Has anyone else experienced this specific problem with the
> combobox? I understand the version 2.6 was suppose to fix the problem with
> MS Spyware. Did it also fix the problem with Norton Antivirus? Has anyone
> experienced any performance problems/bugs with combobox with Dbase version
> 2.6?
See if the following thread in getting-started helps:
news://news.dbase.com/XrRksTiMGHA.2256%40news-server
--
Todd Kreuter [dBVIPS]
| |
| Bob Amaral 2006-03-07, 11:23 am |
| Chris:
I finally found the problem. It's a progam called "SMSystemAnalyzer.exe"
which is part of System Mechanic 6 Professional . It has nothing to do with
spyware or antivirus. It supposedly monitors system settings and automated
maintenance routines and collects and analyzes system data when the PC is
idle. If I shut it down the comboboxes work fine.
"Chris Stoeckert" < cstoeckert@dslextrem
e.com> wrote in message
news:spoVwtaQGHA.1740@news-server...
> Hi Bob,
> As I commented in a couple of previous threads, I have had the problem you
> described since dB2k (thru 2.5) -- but only on the development machine
> (currently a P4 with 512MB RAM). Once the programs are deployed to another
> machine, the problem no longer exists. I notice the problem not only in
> the program I am writing, but in the dBASE Navigator & Designers (e.g.
> Table Designer, Type & Index). I have uninstalled Spybot, Adware and a
> couple of other anti- programs without any significant improvement.
> I hope you are able to find the solution to this problem.
> Chris
>
>
> "Bob Amaral" <bamaral@comcast.net> wrote in message
> news:aCVa76YQGHA.2320@news-server...
>
>
| |
| Bob Amaral 2006-03-07, 11:23 am |
| Todd:
Thanks for link. I finally found the problem. See my response to Chris
Stoeckert's post for the solution.
Bob
"Todd Kreuter" <tkreuter@dbvips.usa> wrote in message
news:440D8208.9D16DAC3@dbvips.usa...
> Bob Amaral wrote:
>
> See if the following thread in getting-started helps:
>
> news://news.dbase.com/XrRksTiMGHA.2256%40news-server
>
>
> --
> Todd Kreuter [dBVIPS]
| |
| Chris Stoeckert 2006-03-07, 1:23 pm |
| Bob:
I have used System Mechanic since ver 2 or 3 (and now have 6) and that could
be my problem too. I plan to uninstall it tonight and will post my results.
Chris
"Bob Amaral" <bamaral@comcast.net> wrote in message
news:F7R4mMgQGHA.592@news-server...
> Chris:
>
> I finally found the problem. It's a progam called "SMSystemAnalyzer.exe"
> which is part of System Mechanic 6 Professional . It has nothing to do
> with spyware or antivirus. It supposedly monitors system settings and
> automated maintenance routines and collects and analyzes system data when
> the PC is idle. If I shut it down the comboboxes work fine.
>
>
> "Chris Stoeckert" < cstoeckert@dslextrem
e.com> wrote in message
> news:spoVwtaQGHA.1740@news-server...
>
>
| |
| Todd Kreuter 2006-03-08, 7:23 am |
| Bob Amaral wrote:
>
> Thanks for link. I finally found the problem. See my response to Chris
> Stoeckert's post for the solution.
Thanks, saw it.
--
Todd Kreuter [dBVIPS]
| |
| Chris Stoeckert 2006-03-08, 11:23 am |
| Hi Bob,
After years of putting up with that annoyance, your solution appears to have
cured my combobox problem <BG>.
Thank you, Chris
"Todd Kreuter" <tkreuter@dbvips.usa> wrote in message
news:440ED448.81ED77C3@dbvips.usa...
> Bob Amaral wrote:
>
>
> Thanks, saw it.
>
>
> --
> Todd Kreuter [dBVIPS]
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