Serialize QListwidget

[john_god]

Can I serialize a QListWidget ?

Docs say QListWidgetItem is serializable, but dont mention Qlistwidget.
I try like this and get a error

QFile filelist("list.dat");
    if (filelist.open(QIODevice::ReadOnly))
    {
        QDataStream inlist(&filelist);
        inlist>>ui.listWidget; //error
        filelist.close();
    }
 
    QFile filelist("list.dat");
    filelist.open(QIODevice::WriteOnly);
    QDataStream outlist(&filelist);  
    outlist<<ui.listWidget;
    filelist.close();

QFile filelist("list.dat");
    if (filelist.open(QIODevice::ReadOnly))
    {
        QDataStream inlist(&filelist);
        inlist>>ui.listWidget; //error
        filelist.close();
    }

    QFile filelist("list.dat");
    filelist.open(QIODevice::WriteOnly);
    QDataStream outlist(&filelist);  
    outlist<<ui.listWidget;
    filelist.close();

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error

D:/qt4examples/Matematica/mainwindow.cpp:168: error: no match for 'operator>>' in 'inlist >> ((Ui_MainWindowClass*)(((Ui::MainWindowClass*)((MainWindow*)this)) + 20u))->Ui_MainWindowClass::listWidget'

D:/qt4examples/Matematica/mainwindow.cpp:168: error: no match for 'operator>>' in 'inlist >> ((Ui_MainWindowClass*)(((Ui::MainWindowClass*)((MainWindow*)this)) + 20u))->Ui_MainWindowClass::listWidget'

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So do I have to serialize all QListWidgetItem items inside of a for() or is there a better way ?

Thank you