On 9-7-2012 10:00, Ludo Brands wrote: > >> Currently the db lookup controls tries to open the dataset linked to >> ListSource if is closed at lookup initialization. >> > > You probably guessed it but I'm voting for removing this feature. Opening of > datasets and establishing database connections behind the back of the > programmer is always a bad idea. > > The try open when loaded (streamed), even in the fixed version, has also the > nasty side effect of not being deterministic. A programmer can't easily > influence the loading order of components and a change in the order will > change the behavior of the program. The fix in 22337 solves the exception > but not the unpredictable behavior. If the link dataset and connection are > loaded before the dblookup it will open the dataset, else it won't. So your > program can start up with (some) dblookups pre-loaded or not. > > We shouldn't support users counting on unpredictable behavior. > Totally agreed.
-- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
