resetting entire model by setting to a different value

Main.qml

@@ -23,11 +23,6 @@ Window {
             model: networksModel
             width: 100
             height: 1000
-            // model: ListModel {
-            //             ListElement { name: "Item 1"; value: 10 }
-            //             ListElement { name: "Item 3"; value: 20 }
-            //             ListElement { name: "Item 3"; value: 30 }
-            //         }
 
             delegate: Item {
                 height: 20

NetworkScanner.cpp

@@ -50,18 +50,18 @@ QVariant NetworksModel::data(const QModelIndex &index, int role) const
 
 void NetworksModel::scan()
 {
-    beginInsertRows(QModelIndex(), this->rowCount(), this->rowCount());
+    beginResetModel();
 
     QList<Network> networks = this->m_networkScanner.scanForNetworks();
     for (const Network& network: networks)
     {
         qDebug() << "Got network: " << network.name() << Qt::endl;
-        this->m_networks << network;
     }
+    this->m_networks = networks;
 
     qDebug() << "now have " << this->m_networks.size() << Qt::endl;
 
-    endInsertRows();
+    endResetModel();
 }
 
 QHash<int, QByteArray> NetworksModel::roleNames() const