Access selected items in ListView when the button is clicked

Noturnoz

Hello,

I have a ListView witch uses my own QAbstractListModel:

QQmlApplicationEngine engine;
engine.rootContext()->setContextProperty("carListModel", &carListModel);

User can select multiple items and then click a button. When he clicks the button I want to access all the selected items from the c++ code. Can someone tell me how can I achieve that? The part with the button is obvious (signals) but the part where I access the ListView from the c++ is not clear for me.

The ListView is an arbitrary ListView with assigned model.

I've read the http://doc.qt.io/qt-5/qtqml-cppintegration-interactqmlfromcpp.html, but there is a Warning mentioned that the the QObject *rect = object->findChild<QObject*>("rect"); should not be used as it breaks the QML<->c++ logic.

p3c0

Hi,

Short Explanation:
The best would be to set that in the model itself and access it from C++.

Long Explanation:
Assuming you have for eg. CarItem in carListModel, you can add a setter and getter function to it. The setter ( say setSelected(bool)) can be made Q_INVOKABLE which will be accessed from QML to set that it is selected. Then just you need to access all these CarItem's from C++ and check if they are selected using getter.

fecub

I think there is no way to make a QML ListView multi-selectable.
But you can do something like that:

if an element is clicked:

set its property selected (or however you call it), and
set in delegate that if selected is true, then it should be formatted differently. for example the background color changes to yellow.
then add it to a list e.g QList of selected items. You can create a property for this in C++
Later you can get a list of selected items and can handle with this.