[Sascha]

Hello,

is it possible to add a derived c++ QAbstractListModel model to a ListPage with delegated SimpleRow ?
I implemented such a class as singleton and registered it in the main.cpp file via qmlRegisterSingletonType(..).
In QML I set the ListPage model to the registered singleton model and delegate to SimpleRow. With this constellation
I receive a “ReferenceError: modelData is not defined” error. But when I change the SimpleRow with a Rectangle element,
my c++ model works.

 

Here is some Code:

main.cpp

...
qmlRegisterSingletonType<SetListModel>("NoNameApp", 1, 0, "SetListModel", SetListModel::getInstance);
...

 

ListPage.qml (with SimpleRow)

import QtQuick 2.4
import Felgo 3.0
import NoNameApp 1.0

ListPage {
    id: _set_listpage
    title: qsTr("Test")
    emptyText.text: qsTr("No data available")

    delegate: SimpleRow{
        showDisclosure: false
        image.radius: image.height
        image.fillMode: Image.PreserveAspectCrop
        autoSizeImage: true
        imageMaxSize: dp(48)
        detailTextItem.maximumLineCount: 2
        detailTextItem.elide: Text.ElideRight
        detailTextItem.text: model ? ""+model.birthdate + "\n" + ""+model.additionText : ""
        imageSource: model ? model.imageSmall : ""
        textItem.font.pixelSize: sp(16)
        onSelected: {
            navigationStack.popAllAndPush(_set_detail_page, {
                                            setName: model.text,
                                            addition: model.additionText,
                                            imageurl: model.imageBig
                                          })
        }
    }

    Component {
        id: _set_detail_page
        SetDetailPage {}
    }

    model: SetListModel
}

ListPage.qml (with Rectangle)

import QtQuick 2.4
import Felgo 3.0
import NoNameApp 1.0

ListPage {
    id: _set_listpage
    title: qsTr("Test")
    emptyText.text: qsTr("No data available")

    delegate: Rectangle{
        width: parent.width
        height: 100
        color: "red"
        Text{
            text: model.id+":"+model.text
        }
    }

    Component {
        id: _set_detail_page
        SetDetailPage {}
    }

    model: SetListModel
}

Best regards

Sascha

 

[GüntherFelgo Team]

Hi Sascha!

We designed the SimpleRow type for easy usage with models described as arrays. This turned out to be a problem when using ListModel based types together with the SimpleRow.

We already fixed this error for the next update. Until then, it should work to add a dummy property “modelData” to your ListModel to get rid of the error.

    ListModel {
      id: listModel
      ListElement { title: "Title"; description: "description"; modelData: "dummy"  }
    }

    ListPage {
        title: qsTr("Test")
        model: listModel
        delegate: SimpleRow{
            textItem.text: title
            detailTextItem.text: description
        }
    }

Hope this also works for your C++ model in the same way!

Best,
Günther

 

[Sascha]

Hello Günther,

 

thanks for your help. With a “modelData” dummy in my model it works now.

Best regards

Sascha