QML Property Browser

I want to create a QML component similar to this http://doc.qt.digia.com/qq/qq18-propertybrowser.html. At the moment I’m returning a QVariantMap with the property name as the key, and the variant as the thing I want to create an editor component for. I know how to create a ListView with type loaded specific components http://cdumez.blogspot.co.nz/2010/11/heterogeneous-list-model-in-qml.html but how do you access the key or value from the map within a ListView ListView {  model: variantmap  delegate: Text{ text: key??, " ", value??} }