How to expose model to QML

[Raghvendra]

Hey There, I need to expose model in qml file,

like

mail.cpp

int main(int argc, char *argv[])
{
QApplication app(argc, argv);

QStandardItemModel model(4, 4);
for (int row = 0; row < 4; ++row) {
    for (int column = 0; column < 4; ++column) {
        QStandardItem *item = new QStandardItem(QString("row %0, column %1").arg(row).arg(column));
        model.setItem(row, column, item);
    }
}
MyClass myc(model);

//qDebug()<<"Data from model "<<myc.
//MyClass myc;
QQmlApplicationEngine engine;
engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
engine.rootContext()->setContextProperty("myc", &myc);
engine.rootContext()->setContextProperty("datamodel", &model);


return app.exec();

-----------------------------main.qml is

Rectangle {

        id: graphContainer
        visible: false
        x: 0
        y: 200
        width: 630
        height: 443

       gradient: Gradient {
            GradientStop {
                position: 0
                color: "#ffffff"
            }

            GradientStop {
                position: 1
                color: "#000000"
            }
        }

       Graph
       {
           id:graphChart
           model:datamodel

       }

    }

but it gives me error

[mrjj]

Hi

• "but it gives me error"
  Always include the actual error with as much info as possible. :)

[p3c0]

said in How to expose model to qml:

engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
engine.rootContext()->setContextProperty("myc", &myc);
engine.rootContext()->setContextProperty("datamodel", &model);

Perhaps you should try setting model before setting the QML.