Good morning to all, How can I create 3 depending QCombobox, for example Country, City and Zip Code, so that when I select one, the other ones are filtered by the value of the first one? I'm use a QSqlRelationalTableModel and 3 relations (so also 3 QSqlTableModel). I know that I can use signal to filter data of QSqlTableModel, but if I use the QDataWidgetMapper the search on it don't fire any QCombobox Signal, so, how can I got what I want?
Thanks a lot for your time! Michele
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