On 14/10/16 06:43, LacaK via Lazarus wrote:
I do not know IBX, but don't you use overriden
TDataSet.InternalInitFieldDefs ? It will allow you put extra info into
FieldDef and then use overriden TDataSet.CreateFields, which will
allow you pass extra info from TIBFieldDef into TIBStringField for
example ...
(AFAICS Zeos do it in this way also)
That is basically what IBX does. My point is that it would be better to
put the passing of the extra info into a subclassed TFieldDef rather
than have it in TIBCustomDataSet. After all, isn't the whole point of OO
programming to group related functionality into the same class. If you
recommend subclassing the TFieldDef then surely it makes sense to make
CreateField a virtual method.
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