How Get model of a child item within QStandardItem

[bounce]

Hi everyone,

I'm quite new in Qt/QML so I still have to learn some basics. Here is my problem on my app.

My app has 2 ListView in qml, my model is "exported" from c++ by setContextProperty. The model is herited from QStandardItemModel and is called StandardQmlModel
My model is a 2 level model. Which means 1 "main" item can have children, and that's it.
So 1 Listview has the model exported from c++,once 1 item is selected from the first listview, the 2nd listview display the children items.

So, in c++ code I did this,

QObject* StandardQmlModel::childModel(QVariant child_item) const
{
    QModelIndex idx = child_item.value<QModelIndex>();
 
    QStandardItem* itm = 0;
    if(idx.isValid())
    {
        itm = (QStandardItem*)this->itemFromIndex(idx);
        if(itm->hasChildren())
        {
 
            return itm->child(0,0).model();
        }
    }
    return 0;
}

QObject* StandardQmlModel::childModel(QVariant child_item) const
{
    QModelIndex idx = child_item.value<QModelIndex>();

    QStandardItem* itm = 0;
    if(idx.isValid())
    {
        itm = (QStandardItem*)this->itemFromIndex(idx);
        if(itm->hasChildren())
        {
            
            return itm->child(0,0).model();
        }
    }
    return 0;
}

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but what I get with this code is the "main" model, or the same model as display in the first ListView.
So my question is : How can I get the sub Model of an item in a view ?

Many thanks
Bounce

[wysota]

Use the VisualDataModel element and set the rootIndex property to the item which is the parent item of those items you wish to display in the view.

[bounce]

Awesome ! Many thanks