Hi Thomas,
I implemented the behavior that the model returns None if the UI
requests items that do not exist. But as I expected I only got rid of
the errors, but the incorrect behavior (not all items or empty items are
shown) remains. I was hoping that Qt 4.7.2 might fix the problem, but it
didn't change anything.
I do believe it is not bug in my code, but there is something wrong in
either PySide or Qt/QML. Could someone confirm it?
I will be grateful for any suggestions. Thank you.
Vladimir
-------- Původní zpráva --------
Předmět: Re: [PySide] Strange behavior of QML ListView and
QAbstractListModel
Datum: Thu, 24 Feb 2011 12:01:07 +0100
Od: Vláďa <[email protected]>
Komu: Thomas Perl <[email protected]>
Kopie: [email protected]
Hi Thomas,
thank you for the answer. I could change my code to implement this. But
the QML UI should never request data for item with index -1. Such item
doesn't exist. There should be two items with indexes 0 and 1.
So even if I changed my code so that it returns None, I would only
eliminate the error message, but it wouldn't solve my problem. I will
still get empty delegates.
Regards,
Vladimir
Dne 24.2.2011 11:48, Thomas Perl napsal(a):
Hi Vláďa,
2011/2/24 Vláďa<[email protected]>:
[...] I think the most important information is that QML
requests from QAbstractListModel item with index -1, which of course doesn't
exist.
In that case, your model should return None (in C++ one would return
an empty/invalid(?) QVariant.
HTH.
Thomas
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