How to add/insert/remove a row in QTableView?

The simple model/view example often gives beginners an illusion that after they re-implement the 4 virtual functions: rowCount, columnCount, data, headerData, their model is ready to roll. They take it for granted that after they add/insert/delete data in the model, the view must update itself accordingly and automatically. It seems reasonable because the view can call the model's rowCount an…

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