Forum > Database
problem with tbufdataset at designtime
kjteng:
When I click the Active property in the object inspector, tbufdataset load the data correctly (from the file that I specified in the FILENAME property). However if I click the Active property again (set it to false then set it back to True), the IDE crashes.
This does not occur in run time (where I can change the active property many times with no problem)
Any help?
p/s code attached
Zvoni:
It's a bug
https://forum.lazarus.freepascal.org/index.php/topic,53653.msg397188.html#msg397188
kjteng:
Thank you for your reply. Where can I download the amended pas file ?
I downloaded the bufdataset.pas from https://gitlab.com/freepascal.org/fpc/source/-/blob/600a5dd13fa707280908935b2a5bd14879125874/packages/fcl-db/src/base/bufdataset.pas. The problem still not solved.
BTW I just copied that file to c:\lazarus\fpc\3.2.0\source\packages\fcl-db\src\base and then rebuid the IDE ...is there anything/steps that I have missed out?
wp:
The database components are different from other Lazarus components in the sense that they reside in the FCL and thus are not recompiled when you rebuild the IDE. Therefore, you must also recompile FPC - that's a story of its own... (but maybe it's enough to just recompile the fcl-db package) And be warned: when you copy a unit between different FPC versions there may be incompatible code in the copied unit so that compilation may abort.
It is much safer if you build FPC-trunk/main or FPC-fixes from the full sources (get them by git), or with the aid of fpcupdeluxe.
kjteng:
--- Quote from: wp on October 28, 2021, 06:02:38 pm ---
It is much safer if you build FPC-trunk/main or FPC-fixes from the full sources (get them by git), or with the aid of fpcupdeluxe.
--- End quote ---
Thanks you master for your reply.
Sorry for asking again as I am new to this subject (I have not use fpk directly before, only know to program in the IDE) :-
1. FPC-trunk - means download the source from the following site ?
https://gitlab.com/freepascal.org/lazarus/lazarus/-/tree/main
2. Where can I find some guidance notes on 'how to recompile FPC' or 'how to recompile fcl-db'?
3. Alternatively, is there a way to re-install the lazarus in my pc so as to get everything updated?
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