Qt QTreeWidget how to get the row a QComboBox is on

Question

I have a QTreeWidget with several QComboBoxes as QTreeWidgetItems. I am trying to find a way to get the current QTreeWidget row of the selected QComboBox. ui->sensorTree is the QTreeWidget. My tree looks something like this:

parent0
    child0    QComboBox0
    child1    QComboBox1
parent1
    child0    QComboBox0    QComboBox0
    child1    QComboBox1    QComboBox1

So if QComboBox0 was selected I would want to return 0.

Update:

int index = ui->sensorTree->currentIndex().row();

This gives me the correct row. The problem now is that the row does not have to be selected to change the QComboBox. What I need is to connect QComboBox.indexChanged to pass the row the ComboBox is in, and the current ComboBox text of all ComboBoxes in the row.

Could you expand your question (or make it more accurate / provide some code sample)? I could not understand your problem :( If you want to change selection - read Qt documentation. — Dmitry Sazonov, Sep 12 '13 at 17:59

score 0 · Answer 1 · answered Sep 12 '13 at 19:56

0

I got it to work. I ended up just creating my own custom class which inherited QComboBox and I just added a constructor that passed in an extra parameter that had the row number. Then I created a custom signal that passed the current text of the combobox and the row which was obtained from the row data passed in by the constructor.

answered Sep 12 '13 at 19:56

Jared Price

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And what will be, if some row above will be removed? Then your index became invalid. You should pass QPersistentModelIndex instead of row number – Dmitry Sazonov Sep 13 '13 at 07:02
In my case it will work. In my application rows are only removed if the entire table is rebuilt and in that case the comboboxes are rebuilt as well. – Jared Price Sep 13 '13 at 14:37

Qt QTreeWidget how to get the row a QComboBox is on

1 Answers1