how to connect to a slot when a row is selected in TableView?

[babygal]

Any code example.please.

[Lykurg]

Any code example.please.

Ok, then you posted in the wrong forum. Moved to newbie.

What have you tried so far? have you red the methods I mentioned? Read the documentation about signal and slots. There is no use if I post code because you have to learn it (also how to learn things right out of the docs.)

[babygal]

I think it is returning a valid pointer. And yes I'm using Q_OBJECT macro.

[Lykurg]

Did you get any warnings on the console when starting the program?

[Live]

I'm pretty sure that the

connect(view->selectionModel(),SIGNAL(currentRowChanged(QModelIndex,QModelIndex)),this,SLOT(querydb()));

connect(view->selectionModel(),SIGNAL(currentRowChanged(QModelIndex,QModelIndex)),this,SLOT(querydb()));

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will not work since your signal and your slot don't have the same parameters type. When you connect, you have to connect a signal to a slot with exactly the same parameters.

Hope this helps.

[Lykurg]

When you connect, you have to connect a signal to a slot with exactly the same parameters.

That's not true. A slot can have the same parameter count as the signal or lesser but never more.

[babygal]

Did you get any warnings on the console when starting the program?

I didn't notice any serious warnings. But the matter got resolved when I combined the table view into my main dialog's layout.

[qt_gotcha]

I think the function must have QIndex in the header:
this works for me
connect(fileView, SIGNAL(doubleClicked(QModelIndex)), this, SLOT(selectFiles(QModelIndex)));

void nutshellqt::selectFiles(const QModelIndex& index)
{

}

make sure the function is in the header file under public slots

public slots:
void selectFiles(const QModelIndex& index);