473,856 Members | 1,630 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Very Puzzled, Please Help

Hello,

I am developing a web application that contains a very complicated and
data intensive page. The application has been tested and deployed, but
now we are seeing problems.

Some form elements (drop-downs) are blanking out during the trip to the
server and back. This happens randomly and only on certain computers.
We have tried to duplicate the problem on our own machines with no
luck. I have watched the problem occur on the affected machines. The
users on those machines have used one of our machines and have not had
the problem there. And, we can duplicate the problem in the tet
environment if we use one of the affected machines to do it.

Both our tester's and the affected machines have the same version of
IE, but may have differing update levels of windows. All, I believe,
are on Win 2k.

There is some specualation that the problem may only occur when the
user has been active in the application for a while. This is hard to
establish, however, as the problem is intermittent anyway.

My best guess at this point is that the request or response object is
being corrupted, which causes the drop-down list to loose it's value.
There is also another very rare occurance of a problem where a static
drop-down list has its items list corrupted. In this case, the static
list will duplicate some items while removing others. I am leaning
towards a possible memory leak in the browser.

I should note that there are many many other users that have not had
any issues. All are running IE on some form of Windows.

I have run out of ideas. Can anyone else give me a clue on this?

Thanks,
A. Schieffer

Nov 19 '05 #1
3 1003
If it might be the amount of time (timing out), consider adding JavaScript
that "logs" the person out after so many minutes. That will get around a lot
of potential errors. Kicking them to a "you are now logged out due to
inactivity" page is the most useful.

The actual values of controls are stored in Viewstate, which is a hidden
field on the page. It is not likely what is causing your errors, however.

--
Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

*************** ************
Think Outside the Box!
*************** ************
"schiefaw" wrote:
Hello,

I am developing a web application that contains a very complicated and
data intensive page. The application has been tested and deployed, but
now we are seeing problems.

Some form elements (drop-downs) are blanking out during the trip to the
server and back. This happens randomly and only on certain computers.
We have tried to duplicate the problem on our own machines with no
luck. I have watched the problem occur on the affected machines. The
users on those machines have used one of our machines and have not had
the problem there. And, we can duplicate the problem in the tet
environment if we use one of the affected machines to do it.

Both our tester's and the affected machines have the same version of
IE, but may have differing update levels of windows. All, I believe,
are on Win 2k.

There is some specualation that the problem may only occur when the
user has been active in the application for a while. This is hard to
establish, however, as the problem is intermittent anyway.

My best guess at this point is that the request or response object is
being corrupted, which causes the drop-down list to loose it's value.
There is also another very rare occurance of a problem where a static
drop-down list has its items list corrupted. In this case, the static
list will duplicate some items while removing others. I am leaning
towards a possible memory leak in the browser.

I should note that there are many many other users that have not had
any issues. All are running IE on some form of Windows.

I have run out of ideas. Can anyone else give me a clue on this?

Thanks,
A. Schieffer

Nov 19 '05 #2
It sounds like the issue is really somewhere on the client machines. I would
focus on looking versions of windows, IE, IE settings, etc. to really try to
narrow down what the affected machines have in common.

"schiefaw" <sc******@compu ter.org> wrote in message
news:11******** **************@ o13g2000cwo.goo glegroups.com.. .
Hello,

I am developing a web application that contains a very complicated and
data intensive page. The application has been tested and deployed, but
now we are seeing problems.

Some form elements (drop-downs) are blanking out during the trip to the
server and back. This happens randomly and only on certain computers.
We have tried to duplicate the problem on our own machines with no
luck. I have watched the problem occur on the affected machines. The
users on those machines have used one of our machines and have not had
the problem there. And, we can duplicate the problem in the tet
environment if we use one of the affected machines to do it.

Both our tester's and the affected machines have the same version of
IE, but may have differing update levels of windows. All, I believe,
are on Win 2k.

There is some specualation that the problem may only occur when the
user has been active in the application for a while. This is hard to
establish, however, as the problem is intermittent anyway.

My best guess at this point is that the request or response object is
being corrupted, which causes the drop-down list to loose it's value.
There is also another very rare occurance of a problem where a static
drop-down list has its items list corrupted. In this case, the static
list will duplicate some items while removing others. I am leaning
towards a possible memory leak in the browser.

I should note that there are many many other users that have not had
any issues. All are running IE on some form of Windows.

I have run out of ideas. Can anyone else give me a clue on this?

Thanks,
A. Schieffer

Nov 19 '05 #3
Our timeout is set to 1 hour and these issues occur in the middle of a
workflow. This app would have been much better as a desktop app, since
it is open all day. But, no one ever listens to the developer. I am
sure that it is not a timeout issue, however, as that would kick them
back to the login screen.

Nov 19 '05 #4

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

5
1943
by: Maciej Nadolski | last post by:
Hi! I`ve got a simple question but I`m puzzled:( When I create variable: for example $query for query to MySQL its obvieus that I want to use variables. Now should I do something like that: 1) $query = "blahblahblah".$variable1."blahblahblah" ."blahblahblah".$variable2."blahblahblah"; OR 2) $query = "blahblahblah."$variable1."blahblahblah" ."blahblahblah."$variable2."blahblahblah";
7
1778
by: Robin Becker | last post by:
We've been queried about the randomness of some filenames we're producing. I worked through and seemed to satisfy myself that random is being initialised from the system time in C time(&now) init_genrand(self, (unsigned long)now); where now is a time expressed in integral seconds since the eopoch. This would mean that our filenames are not particularly random as that would make the sequences common if two cgi scripts started within a...
0
1183
by: Frank L | last post by:
Greetings, I am somewhat puzzled by a difference that occurs when I compile my web application out of VS.NET or if I compile it through NAnt. The issue is with how the resources get compiled into the application's dll file. Using the Reflector application I can see that VS.NET comiles the default language resource into the main dll while putting other languages into so-called satellite assemblies to folders which are named after the...
6
2852
by: =?Utf-8?B?QkJN?= | last post by:
Hi, I have an app that is crashing due to a System.ArgumentException. At this point it's just a simple app to test some basic object values. The main app is a Windows App that looks like this. Public Class DesTestForm Private Sub DesTestForm_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
16
1622
by: Herb | last post by:
I am new to vb.net coming from vb6 I built and published an app that work fine on the production machine. I try installing it on a clean machine and I installed NETFramework2.0.50727 ( i am using Vb.net 2005 no sp1 and these are the references of the compiled program). I check that these references are identical on both machines and in the proper location and they were The installed went fine but when I run the program I see it...
15
1742
by: Lorenzo Stella | last post by:
Hi all, I haven't experienced functional programming very much, but now I'm trying to learn Haskell and I've learned that: 1) in functional programming LISTS are fundmental; 2) any "cycle" in FP become recursion. I also know that Python got some useful tool such as map, filter, reduce... so I told: "let's try some FP-style programming with Python!". I took a little example of Haskell: listprimes :: Integer -
0
1907
by: DL | last post by:
Env: MS SQL Server 2005 developer edition on Windows XP Pro I have a fairly complex query that create a 'variable TABLE' and then, run a set of freetext search using the CONTAINS predicate, and add matches to this table; and then fetch the matches from the target table. The execution used to be 1/3 or 1/4 or even less of a second. But now, all of a sudden, it almost takes 1 second to run it. Nothing really has changed, be it, the...
112
4791
by: Prisoner at War | last post by:
Friends, your opinions and advice, please: I have a very simple JavaScript image-swap which works on my end but when uploaded to my host at http://buildit.sitesell.com/sunnyside.html does not work. To rule out all possible factors, I made up a dummy page for an index.html to upload, along the lines of <html><head><title></title></ head><body></body></html>.; the image-swap itself is your basic <img src="blah.png"...
4
1484
by: jlhsgcib | last post by:
Hello, I have the following snippet of code: sub getPasswordStatus { my ($login, $password) = @_; my$quotedLogin = quotemeta($login);
0
9918
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, weíll explore What is ONU, What Is Router, ONU & Routerís main usage, and What is the difference between ONU and Router. Letís take a closer look ! Part I. Meaning of...
0
10697
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
10786
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
7097
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
5762
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
5959
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
4578
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
4175
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
3202
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.