On Saturday, December 04, 2010 09:06:33 am Carey Gagnon wrote:
> > Frameworks fails to restore RowMumber in saveAll() method
> > because one of your children doesn't have requery parameter set.
>
> Thanks Jacek. You pointed me in the right direction with your replay:
>
> I changed:
>
> ## *!* ## Dabo Code ID: dDropdownList-dPanel
> def afterInit(self):
> biz = self.Form.getBizobj("builders")
> names, pks = biz.getBuilders()
> self.Choices = names
> self.Keys = pks
> self.ValueMode = "Key"
>
>
> to:
>
> ## *!* ## Dabo Code ID: dDropdownList-dPanel
> def afterInit(self):
> biz = self.Form.getBizobj("builders")
> names, pks = biz.getBuilders()
> self.Choices = names
> self.Keys = pks
> self.ValueMode = "Key"
> self.Form.requery() <<<<<<<<<----------------------------------------
> Added This line
>
> and the error message is gone.
>
> How do you set up database logging?
>
> Carey
I'm glad it works now. However, I think I should point out that requery() has
lot's of little side effects and can be very costly in terms of performance.
When you requery you are setting/resetting the data which causes the controls
to be updated(). That may or may not be what you want done. Can you imagine
what the performance hit would be if you five or six dropdowns on your form
all making calls to requery().
In my code I have always accounted for the possible null key value. Maybe
that's your real issue. But I don't know!
Johnf
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