Expert
Re: 2 subclasses of QSortFilterProxyModel behind each other.
Yes that is somthing we have take seriously in design, it will be better to subclass QAbstractProxyModel (or its subclass)By the way, a problem with making a proxy derived from QAbstractItemModel and not QAbstractProxyModel (or its subclass) is that you lose the possibility of going up the chain of proxy models to reach the final model with a single loop, like so:
When you know how to do it then you may do it wrong.
When you don't know how to do it then it is not that you may do it wrong but you may not do it right.
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