What should be the section.property string when using Qml ContactsModel

[tapadar]

My code is like this ,
what should be the section.property when using Qml ContactsModel?

I do not see the section showing up anything here.

Also, Is it possible to copy the ContactsModel to ListModel? If so, how?

@ListView{
id:listContact
focus:true;clip:true
anchors.fill: parent
model:contactModel.contacts

            delegate: contactDelegate
            section{
                property: "name.firstName"
                criteria: ViewSection.FirstCharacter
                delegate: Rectangle{
                    x:200;y:300
                    width:parent.width-40; height:40
                    color:"#00808080"
                    visible: listContact.moving
                    Text{
                        anchors.centerIn: parent
                        font{pixelSize: 44; bold:true}
                        text:section
                    }
                }
            }
            ScrollDecorator{
                flickableItem: listContact
            }
        }@

[miksuh]

I also would like to know how to use sections with QtMobility's QML ContactModel. Has anyone any idea? Sections show up just fine when I use custom ListModel, but I can't figure out how to use sections with ContactModel.