MI-L MI: Multiuser access on mapinfo tables using mapbasic.

[Geografía y Electrónica, SA de CV]

Dear all:

I've been trying to implement a decent multiuser access on mapinfo tables.
But after reading carefully the mapbasic manual chapter 7, several days of
trying, and several posibilities searched, I still have no solid multi-user
access.

My main problems are as follow, and happen when one machine is editing the
table and is about to save the changes, and another machine tries to read
it at the same time.

When I use the Set TimeOut.  
        In the event of a simultaneous file access, one reading the file and the
other one trying to write to it, both machines show the "retry" dialog.
But as long as the dialog is present in any machine, the file is still
"being used" by that machine, so any "retries" on other machines will also
fail.    Is there a way to tell  mapinfo to release the file (just as it
gets released when you press 'cancel') while it shows the retry/cancel
dialog, for other machines still trying to read/write the file?

When I use the OnError.
        In the event of a simultaneous file access, both machines will jump to the
"Failed" label, but on frecuent cases, it causes a runtime error that
terminates the program, even with the onError active.   How can I make sure
the error gets trapped everytime?

I'm using mapinfo 5.5 

Thanks for your reply.
        

---------------------------------
     Ing. Juan Pufleau Correa
Geografía y Electrónica, SA de CV
      Aguascalientes, Mexico
---------------------------------


_______________________________________________________________________
List hosting provided by Directions Magazine | www.directionsmag.com |
To unsubscribe, send e-mail to [EMAIL PROTECTED] and
put "unsubscribe MapInfo-L" in the message body.