Qt C++ | how can I get the string data that is linked to the index when I click an item in a QListWidget?

Question

I have this slot and I want to be able to use the string that is at the index being passed through. How can I get to it?

void Dialog::on_list_Favorites_2_clicked(const QModelIndex &index)
{

}

Timo · Accepted Answer · 2015-07-22 20:51:43Z

3

Since you're using QListWidget instead of QListView you should also use the signal itemClicked(QListWidgetItem*) instead of clicked(const QModelIndex &).

void Dialog::on_list_Favorites_2_itemClicked(QListWidgetItem* item)
{
    qDebug() << item->text();
}

answered Jul 22, 2015 at 20:51

Timo

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3 Comments

Evan B Over a year ago

When I do that I get errors: C2061: syntax error: identifier 'QListWidgetItem' error: C2511: 'void Dialog::on_listWidget_Fav_1_itemClicked(QListWidgetItem *)' : overloaded member function not found in 'Dialog'

Evan B Over a year ago

I get the same errors if I just make a new project with a list widget and create the slot "itemclicked" and try to run.

Evan B Over a year ago

I am idiot. I needed to include QListWidgetItem in dialog.h

hyun · Accepted Answer · 2015-07-23 03:22:40Z

1

You can use below function for this case.

QListWidgetItem * QListWidget::itemFromIndex(const QModelIndex & index) const

And then, the text of item can get using by QString QListWidgetItem::text() const

void Dialog::on_list_Favorites_2_clicked(const QModelIndex &index)
{
    QListWidgetItem* pItem = m_listWidget->itemFromIndex( index );
    Q_ASSERT( pItem );
    if ( pItem )
    {
        QString itemName = pItem->text();
    }
}

answered Jul 23, 2015 at 3:22

hyun

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