> Le 18 déc. 2017 à 00:46, Tony Rietwyk <t...@rightsoft.com.au> a écrit : > > Hi Jérôme, > I assume that parent.isValid is checking the parent QModelIndex by calling > parent.model().columnCount within the DummyModel. There used to be a Qt > utility to check that your models have the correct overrides. Note that the > source model cannot rely on the proxy model for anything - it must be self > contained. Okay so I guess that returning any non-zero value from columnCount in the source model will do the trick. Thanks.
Best regards Jérôme Laheurte
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