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danny · Guest

Hello,

My application accesses dBASE database files on a network drive. When the PC
containing those database files is shut down. My application behaves
adnormally, I understand that because my application can't access to the
database files, or there are some temparory results fragments left before
that PC is shut down. But after the PC is up again, I still can't operate
normally, why??

I want to know is there any method that can know when the connectioin
between my application and the database files is lost so that I can give out
warnings to the customer instead of strange exceptions?? And how to make the
application runs normally if the network connection is resumed??

I am using BDE with Borland C++ Builder 4.0

Thank you,

Danny

Micha Nelissen · Guest

danny wrote:

Dwayne · Guest

Danny>>My application accesses dBASE database files on a network drive. When
the PC
containing those database files is shut down. My application behaves
adnormally, <<

That is correct....You still have flags out for those files, and
your computer is trying to
access the file. (Open Files). It may even lock up and die on you. Make
sure you exit
your program first, before shutting down the PC with the files.

Danny >> But after the PC is up again, I still can't operate
normally, why??<<

You have created 2 files Paradox.lck and Pdocusrs.lck.
Get everyone out who is using the Dbase, and delete these two files.

Eventhough theses say "Paradox" they are also used for your DBASE
files too.

Use a "Flush" after every write, so that your computer will not
"Hold" the data in memory, and not write it to the file. Another way, is to
activate the sharing on the BDE. I preferr the flush...But to each their
own.

Dwayne