QStringListModel doesn’t show on QML ListView.

[swagat]

Hi,
I’m pretty new to QML. I have defined QStringListModel in CPP and exposed to QML. My qml is not able to show list of strings that my model is set to. Please find my code as follows:

int main(int argc, char ** argv)
    {
        QGuiApplication app(argc, argv);
 
 
        QQuickView view;
        QQmlContext *ctxt = view.rootContext();
 
        QStringListModel *model = new QStringListModel();
        QStringList list;
        list << "a" << "b" << "c"<<"s"<<"w";
        model->setStringList(list);
 
 
        ctxt->setContextProperty("myModel", model);
 
 
    //![0]
 
        view.setSource(QUrl("qrc:view.qml"));
        view.show();
        return app.exec();
    }

int main(int argc, char ** argv)
    {
        QGuiApplication app(argc, argv);
     
     
        QQuickView view;
        QQmlContext *ctxt = view.rootContext();
     
        QStringListModel *model = new QStringListModel();
        QStringList list;
        list << "a" << "b" << "c"<<"s"<<"w";
        model->setStringList(list);
     
     
        ctxt->setContextProperty("myModel", model);
     
     
    //![0]
     
        view.setSource(QUrl("qrc:view.qml"));
        view.show();
        return app.exec();
    }

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import QtQuick 2.0
    //![0]
 
    ListView {
        width: 100; height: 100
 
        model: myModel
        delegate: Rectangle {
            height: 25
            width: 100
            Text { text: modelData }
 
        }
    }

import QtQuick 2.0
    //![0]
     
    ListView {
        width: 100; height: 100
     
        model: myModel
        delegate: Rectangle {
            height: 25
            width: 100
            Text { text: modelData }
     
        }
    }

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Am missing something? Please suggest!

---

Added after 1 27 minutes:

I solved the problem by using role name as Qt::display in my qml file.

import QtQuick 2.0
        //![0]
 
        ListView {
            width: 100; height: 100
 
            model: myModel
            delegate:
       Item{
            Rectangle {
                height: 25
                width: 100
                Text { text: display }
 
            }
          }
        }

import QtQuick 2.0
        //![0]
         
        ListView {
            width: 100; height: 100
         
            model: myModel
            delegate:
       Item{
            Rectangle {
                height: 25
                width: 100
                Text { text: display }
         
            }
          }
        }

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QVariant QStringListModel::data(const QModelIndex &index, int role) implemented for Qt:isplayRole only hence it was not able to show the items.

QVariant QStringListModel::data(const QModelIndex &index, int role) const
    {
    if (index.row() < 0 || index.row() >= lst.size())
    return QVariant();
    if (role == Qt::DisplayRole || role == Qt::EditRole)
    return lst.at(index.row());
    return QVariant();
    }

QVariant QStringListModel::data(const QModelIndex &index, int role) const
    {
    if (index.row() < 0 || index.row() >= lst.size())
    return QVariant();
    if (role == Qt::DisplayRole || role == Qt::EditRole)
    return lst.at(index.row());
    return QVariant();
    }

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But with same I’m hit with another problem i.e. my qml shows only the lat item. Any idea how display the entire list?

[wysota]

This works quite fine for me without touching QStringListModel:

import QtQuick 2.0
 
Rectangle {
    width: 360
    height: 360
    ListView {
        anchors.fill: parent
        model: stringlistmodel
        delegate: Text { text: display }
    }
}

import QtQuick 2.0

Rectangle {
    width: 360
    height: 360
    ListView {
        anchors.fill: parent
        model: stringlistmodel
        delegate: Text { text: display }
    }
}

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BTW. modelData didn't work for you because it works for QStringList based models (where you expose QStringList to QML) and not for QStringListModel (which is a QAbstractItemModel subclass).