import QtQuick 2.11
import QtQuick.Controls 2.4

Item {
    width: 250
    height: 500
    
    ScrollView {
        anchors.fill: parent
        
//         contentWidth: listView.contentWidth // workaround (1)
        
        ListView {
            id: listView
            
//             contentWidth: width // not workaround (2)
            
            delegate: ItemDelegate {
//                 implicitWidth: 0 // workaround (3)
                width: parent.width
                text: index
            }
        }
    }
    
    Component.onCompleted: listView.model = 100
}