resizeColumnsToContents has no effect in my tableView...

[filipdns]

Hello,
Using QT 5.10.1 I'm trying to use resizeColumnsToContents() but nothing happened...
What I'm doing wrong?...

thanks a lot for your help!!

here my code:

            TableView {
                id:listView
                width: parent.width
                height: parent.height
                onRowCountChanged:listModel.resizeColumnsToContents()
                model: ListModel {
                    id: listModel
                    Component.onCompleted: {
                        JS.dbpart(stringVariable, stringVariable2)
                        listView.resizeColumnsToContents()
                    }
                }
                TableViewColumn {
                    role: "description"
                    title: "Description"
                    width:100
                }
                TableViewColumn {
                    role: "task"
                    title: "Operation"
                    //width:150
                }
                TableViewColumn {
                    role: "part"
                    title: "Part Number"
                    visible: stringVariable2 === "05" ? false : true
                    //width:200
                }
                TableViewColumn {
                    role: "serial"
                    title: "Serial Number"
                    visible: stringVariable2 === "05" ? false : true
                    //width:175
                }
}