17.07.2010 5:54, Marcelo B de Paula пишет:
Hello list,
After trying to figure out how TBufDataSet handles persistent TFields, i
came to the following conclusion: There are so many problems and bugs
that i can handle.
NewField property editor continue with some implementation problems. The
Size field is simply not used anywhere. Which means that when user type
some value on it, it does nothing.
Fields Editor editor created successfully the persistent TField in code.
Than, while trying to delete these fields, i faced with an AV. Patch
sent to Mantis #16958. After this, AVs stopped and persistent fields
were removed from code. But not from .lfm, and i don´t know why.
Although fields are created successfully with TBufDataSet
"CreateDataSet", they are useless. They don´t retain any information.
Seems some memory issue. Integer Fields displays garbage and String
Fields simply don´t retain any information. If assigning values to
fields in code (FieldByName) i obtain a SIGSEV. Not tested other fields
types.
So, sorry guys. It looks like that you need to full review Lazarus
related to these components (BufDataSet,MemDataSet,...). I know that
people was using these component only in code. But it does not make
sense to me, having an IDE, a specific component in palette and can´t
use it at design time, only in code.
Now i just want to know if any of the "gurus" here will take some action
or i should bugreport all these problems.
Report the bugs, please.
--
Best regards,
Maxim Ganetsky mailto:[email protected]
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