> Hi Peter,
>
> Thanks for your help. But I don't understand why I must override
> 'getValueById' in a derived class to have the behavior that I want. Why this
> is not the default behavior ?
That's the reason why there exists something like 'enhancement bug' ;)
No, serious now: If you think this 'feature' should become available at the
default framework API you should file a bugzilla entry for that.
But since there is a valid implementation rule for that 'feature' ("derive and
override") I don't think it will be implemented anywhere soon.
Deriving classes should be nothing to be afraid of :D
There is a risk of breaking working code, too. Like when some implementation
out there depends on a 'undefined' return value of 'getValueById'.
/Peter
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