Cross-coupling comboboxes

Hello experts,

I have a GTKmm (2.24) application in which two different windows each have a ComboBoxText controlling the same item, so that whenever the user makes a selection on one of them, the other one needs to be updated accordingly. This is implemented by calling the set_active with the result of get_active_row_number.

Because the content of those combo boxes has got rather voluminous, I now want to convert them to hierarchical. So the ...Text version is no good and I'm using a ComboBox with a TreeStore behind it. The row number obviously no longer works, so...

What's the best way to do this?



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