Changing model doesn't affect ComboBox - qml

Question

Suppose, we have the following code:
import QtQuick 2.4
import QtQuick.Window 2.0
import QtQuick.Controls 1.2
import QtQuick.Layouts 1.1
Window {
id: win
width: 800
height: 600
ListModel {
id: listModel
ListElement { name: "element1" }
ListElement { name: "element2" }
ListElement { name: "element3" }
}
ColumnLayout {
anchors.centerIn: parent
width: 200
height: 200
ComboBox {
model: listModel
currentIndex: 1
Layout.fillWidth: true
}
ListView {
model: listModel
delegate: Text {
text: name
}
Layout.fillHeight: true
Layout.fillWidth: true
}
Button {
text: "Change model"
onClicked: {
listModel.get(1).name = "changed text";
//listModel.setProperty(1,"name","changed text"); this line not works too
}
}
}
}
So clicking the button have to change model's element with index 1. But changing the model affects only ListView. The ComboBox remains unchanged.
Why that happens? Is it bug or feature? Is there a way to update ComboBox after changing its model?

Answer 1

I had a similar problem, I used a workaround. In onClicked function of button, create copy of model, change it as you want and then assign it again to ListViews model:
ListView {
id: listView
...
}
Button {
onClicked: {
var copy = listView.model;
copy.get(1).name = "changed text";
listView.model = copy; }
}
}