Qt-interest Archive, July 2007
QComboBox with tree model and tree view
Message 1 in thread
Hi,
I've created a tree model and a tree view in my application that I
want to use in a QComboBox elsewhere. I assign the model to the
combobox using QComboBox::setModel() and assign the view using
QComboBox::setView().
The ComboBox only seems to recognize root elements of the tree
(elements with no parent). If I select the n'th child element of some
parent, the combo box instead selects the n'th child of the invisible
root node.
Is it possible to use a combo box to select children elements in a tree model?
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Message 2 in thread
On tirsdag den 24. Juli 2007, Jim Dam wrote:
> Hi,
>
> I've created a tree model and a tree view in my application that I
> want to use in a QComboBox elsewhere. I assign the model to the
> combobox using QComboBox::setModel() and assign the view using
> QComboBox::setView().
>
> The ComboBox only seems to recognize root elements of the tree
> (elements with no parent). If I select the n'th child element of some
> parent, the combo box instead selects the n'th child of the invisible
> root node.
>
> Is it possible to use a combo box to select children elements in a tree
> model?
A long time ago (during the 4.0pre days, I think) I wrote a class that takes a
tree model and flattens it to a single list for use in a combo box. I
released it as public domain. You can try and take a look at it. Perhaps you
can use it as is or as inspiration for doing exactly what you want.
You can find it on http://www.qt-experts.com/freebies.html. It's part of
the "Free Qt Classes" tarball.
I hope this helps.
Sincerely,
Bo Thorsen.
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