Thanks for your response Jeremy. You have made it clear to me that OPEN DATA FILE first closes the database and then reopen it with the wanted datafile and then repeat that unless something stops it. I tried with $dataPath:="" which obviously was not a particularly brilliant idea. I think I shall incorporate a Default.4DD file and try it from there. Regards Carl
> >From: Jeremy Roussak <j...@mac.com> >To: 4D iNug Technical <4d_tech@lists.4d.com> >Cc: wan...@online.no >Subject: Re: OPEN DATA FILE gets endless loop >Message-ID: <8ef1b76a-1b3a-42d5-9bfb-aad0bd0fc...@mac.com> >Content-Type: text/plain; charset=utf-8 >Carl, >I hesitate to suggest something quite so obvious, but it seems to me that each >time you enter the On Startup method, you >1. Set $dataPath to a path >2. Test $dataPath is “”, which of course it isn’t 3. Open a data file 4. Set >$dataPath to “” (effectively pointless) 5. Re-enter On startup when the new >data file opens 6. Go to step 1; hence your loop >From the OPEN DATA FILE documentation: >If the access path sets a valid data file, 4D quits the database in progress >and re-opens it with the specified data file. In single-user mode, the >Semaphore <file:///4Dv17/4D/17/Semaphore.301-3730607.en.html> >and the On >Startup database method ><file:///4Dv17/4D/17/On-Startup-database-method.301-3730029.en.html> are >successively called. >Warning: Since this command causes the application to quit before re-opening >with the specified data file, it must be used with precaution in the On >Startup database method ><>file:///4Dv17/4D/17/On-Startup->database-method.301-3730029.en.html> or in a >method called by this database method, so as to avoid generating an infinite >loop. >Jeremy ************************** ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************
