Re: TIBQuery2.Assign(TIBQuery1) doesn't work

"Nick Alexander" <nic.alexander@xxxxxxxxx> wrote in message
news:4ba6d6f1.0504202023.6672bbce@xxxxxxxxxxxxxxxxxxxxx

> I am tryng to create a TIBQuery at runtime which must have the same
> calculated fields as a TIBQuery I have already created at design time.
> If I try to assign the design one to the runtime one, I get an error
> at runtime saying cannot assign a TIBQuery to a TIBQuery. What am I
> not uderstanding here?

Two possibilities. First, TIBQuery may not have overridden and
implemented Assign. Second, the other TIBQuery may be in a different
module. Class references (type values) should be singletons through
the application, but in practice they are singletons per module,
with the effect that a Delphi object in a DLL may be a different
class than an object in the main executable with the same class name.

Groetjes,
Maarten Wiltink


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