ListView model from Q_PROPERTY problems

Kyeiv

I have a Q_OBJECT code:

    Q_PROPERTY(QList<QString> someStrings READ someStrings NOTIFY stringsChanged)
    QList<QString> someStrings();

QList<QString> MyClass::someStrings()
{
    QList<QString> list;
    for(int i = 0; i < 10; i++)
        list.push_back("something");
    

    return list;
}

and for the given QML code:

                ListView {
                    id: myListVIew
                    model: ["one", "two"]
                    delegate:
                        Text {
                            id: text
                            text: " element "
                            font.pointSize: 20
                        }
                    Component.onCompleted:
                    {
                        console.log(myListVIew.model)
                    }
                }

I get the view of:

element
element

and console log:
qml: [one, two]

But when i use the model from Q_OBJECT:

                ListView {
                    id: myListVIew
                    model: my_model.someStrings
                    delegate:
                        Text {
                            id: text
                            text: " element "
                            font.pointSize: 20
                        }
                    Component.onCompleted:
                    {
                        console.log(myListVIew.model)
                    }
                }

My view is empty, nothing prints to view, but the model is filled as i get this console log:
qml: [something,something,something,something,something,something,something,something,something,something]

What am i doing wrong that the view is empty?

KroMignon

@Kyeiv said in ListView model from Q_PROPERTY problems:

What am i doing wrong that the view is empty?

The problem is that QList<QString>() is not a valid type for a QML model!

QML model can be QList<QObject*>() or QStringList() (cf https://doc.qt.io/qt-5/qtquick-modelviewsdata-cppmodels.html).

Change your Q_PROPERTY from QList<QString> to QStringList and it will work as expected.