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What is Exception Code C0000005?
Message
 
To
07/08/1999 15:48:13
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Miscellaneous
Thread ID:
00250931
Message ID:
00251482
Views:
47
>>After making minor modifications to a navigation buttons class, (I added a "Record X of Y" display), I'm getting an error when I run one of the forms using it. None of the other forms using it are giving any problems, so I'm wondering if maybe something else is the problem.
>>
>>The error is fatal, and completely bombs VFP out.
>>
>>Two Questions:
>>1.) Does anyone know what the exception code is? Or better yet, where to look for a list of what the exception codes are?
>>
>>2.) How can I use the debugger to step through forms? When I fire it up, it only lets me choose .prg files to open, and stepping into where a form is called doesn't actually step into the form's code. What do I need to do differently?
>>
>>
>>Thanks!
>
>Hi Kile:
>
>PMFJI: SP3 might not fix your problem, if you have a corrupted CDX. We recently upgraded one of our sites to all SP3, and coincidentally had an unrelated network problem that damaged the CDX on one key table. The text of the C0000005 error message was totally worthless for identifying the problem as it referred to files in non-existent directories and other bad info. What we finally found was that we had two tables with the same structure using some modules and one worked but the other bombed imeediately at opening the table. That eliminated a bad SCX or VCX from the suspects. Got C000005 even from attempting to open these tables directly in VFP, once I had narrowed it down to the probable table. These happened to be FP-2x tables, and so I tried to open them with FP-2.x, and son-of-a-gun, all I got was: "Index does not match table" in the usual error box from FoxPro-2.x. I was not able to just REINDEX as the CDX header itself was corrupted, but after regenerating all tags from
>scratch everything was completely solved. I don't know if anyone else has reported this. Nice to know that FP-DOS is still good for things that VFP craps out on...
>
>Anyhow, HTH
>
>P.S. The Debugger was pretty worthless for us on this too...
>
>Rob


Thanks for all of the information everyone provided. I downloaded SP3, and upgraded my system. Not only does it seem to have fixed the C0000005 error I was getting, but my system seems to be running much faster. (??) Before having installed the upgrade, I was beginning to wonder why a 333Mhz computer with 128 MB RAM was running so slow. It now runs as I feel it should. (Gerard - This affect alone would be enough to download the upgrade if you're considering it! It comes in 7 files, totaling about 70 MB.)

Thanks again for all your help!
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