Connecting QDataWidgetMapper::cuurentIndexChanged(int) to a Slot

[zeroptr]

Hi All

I have simple form that declares
QSqlQueryModel *modKomponent;
QDataWidgetMapper *dwmKomponent;

at .h file

and under private slots section I have
void dwmKomponent_currentIndexChanged(int index);

At cpp file

void MainWindow::dwmKomponent_currentIndexChanged(int index)
{
    qDebug()<< index;
}

at construction

 modKomponent->setQuery("select t_komponent.*,t_calibrations.* from t_calibrations inner join t_komponent on  t_calibrations.komponent_id = t_komponent.komponent_id order by t_calibrations.komponent_id",db);
   // modKomponent->setQuery("select t_komponent.* from t_komponent ",db);
    ui->tblKomponent->setModel(modKomponent);
    dwmKomponent = new QDataWidgetMapper;
    dwmKomponent->setModel(modKomponent);
    ui->tblKomponent->resizeColumnsToContents();
    dwmKomponent->addMapping(ui->lineEdit,0);
    dwmKomponent->addMapping(ui->lineEdit_2,1);
    dwmKomponent->addMapping(ui->lineEdit_3,2);
    dwmKomponent->toFirst();

    connect(dwmKomponent, SIGNAL(dwmKomponent->currentIndexChanged(int index)),this, SLOT(dwmKomponent_currentIndexChanged(int index)));

I tried many connection models but I always have

qt.core.qobject.connect: QObject::connect: No such signal QDataWidgetMapper::dwmKomponent->currentIndexChanged(int index) in ..\dwmDENE\mainwindow.cpp:33
qt.core.qobject.connect: QObject::connect: (receiver name: 'MainWindow')

I always have No Such Signal
How can I connect this ?

[JonB]

@zeroptr said in Connecting QDataWidgetMapper::cuurentIndexChanged(int) to a Slot:

SIGNAL(dwmKomponent->currentIndexChanged(int index))

You can't write dwmKomponent->... here.

New style signal/slot connects (https://wiki.qt.io/New_Signal_Slot_Syntax, https://doc.qt.io/qt-6/signalsandslots.html) have been available for more than a decade! I give up on how many people have not changed over, it's a shame. If you used them you would understand much better.

connect(dwmKomponent, &QDataWidgetMapper::currentIndexChanged, this, &MainWindow::dwmKomponent_currentIndexChanged);

[zeroptr]

@JonB thanks a lot I'm still at old days sorry..