Create QLineEdit on QListWidget when double clicked

kayakaan02

So here I add a QListWidget to a QTableWidget in a function in mainwindow.cpp

QListWidget *listWid = new QListWidget;
ui->tableWidget_2->setIndexWidget(ui->tableWidget_2->model()->index(4, (n - m_list.begin())), listWid);//ignore n-m_list.begin()

And here I want to add a QLineEdit when user double clicks into an empty area of that list widget.

So I tried to use this:

connect(listWid, SIGNAL(doubleClicked(listWid)), listWid, [&](){
    QLineEdit *as = new QLineEdit;
    listWid->addItem(as->text()); 
});

But it generates "No matching member function for call to 'connect'"

How can I solve this? thanks in advance.

SGaist

Hi,

Two things that stand out:

use the function pointer version of connect to use it with a lambda
your lambda will just add an empty item to your list widget and leak a QLineEdit object every time you call it.