unknown error occurred while processing the request on the server. The status code returned from the server was: 500

Posted on 2013-06-06
Last Modified: 2013-06-17
I have a very funky problem.  I have a gridview populated with 14 <asp:CheckBoxField> controls.  I have 2 data engines supplying the data via an ObjectDataSource component. The grid also contains a <asp:CommandField> object to edit rows in the grid.  The checkboxes are populate using a select to a datafile.  I can either select the data from MSSQL or Oracle11g

Here's the rub.  If I use the MSSQL database to populate the grid, all works perfectly. If I switch to Oralce to retrieve the checkbox data, I get the dreaded unknown error: The status code returned from the server was: 500 popup.  

There are two things that correct the error.  First, I can remove the enveloping UpdatePanel.  Now both data sources work, but the page flashes.  I can live with this if I have to.  Second, I can remove 4 of the checkboxes from the grid (leavinging the UpdatePanel in place), and the error disappears!

I have tried all suggested scripts and page validation found online to no avail.  I am really baffled by this one.  Is there anyone out there that has any ideas?  I have exausted my options at this point.  If I only knew why the error is occurring, I could fix it.
Question by:mdunlap99
  • 3
  • 3
LVL 48

Expert Comment

ID: 39228313
>>I can remove 4 of the checkboxes ... and the error disappears
maybe a dumb question, but does this indicate some of the fields being requested from the oracle db don't exist? (or maybe the field aliases don't align)

(but I'm assuming I guess that it is a certain 4 that you remove, if it's any 4, then maybe I'm not even close)

Author Comment

ID: 39231815
You know, at this point any ideas can help lead to solution.  Thanks for your comments.  The There are some date fields involved that might be null.  I want to try converting all dates to string values and see if that changes anything.  For now, I have removed the update panel container and all works well.  There is something for sure coming from Oracle that the UpdatePanel can't handle.  I will report outcome on Monday.  Again, thanks!

Author Comment

ID: 39234812
No joy.  I changed the datetime fields to string types, but there was no change.  It seems to be an UpdatePanel component error.  I'm just going to leave the update panel off the page for now.
How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

LVL 48

Expert Comment

ID: 39236247
:( not much I can offer - sorry

Author Comment

ID: 39240817
I know.  There does seem to be any way to determine what the error is.  Thanks anyway for your effort!
LVL 48

Accepted Solution

PortletPaul earned 500 total points
ID: 39240948
a pleasure! cheers, Paul

Featured Post

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Join & Write a Comment

I remember the day when someone asked me to create a user for an application developement. The user should be able to create views and materialized views and, so, I used the following syntax: (CODE) This way, I guessed, I would ensure that use…
This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
This video shows how to recover a database from a user managed backup
Via a live example, show how to restore a database from backup after a simulated disk failure using RMAN.

707 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now