QTableWidgetItem::setData crashes

[RubyTigerSG]

Hi Gurus,

Can anybody tell me what is wrong with this code?

QHash<QString, double>   results = ReturnResults();
    int row = 0;
    QHashIterator<QString, double>  i(results);
    while (i.hasNext()) {
        i.next();
        QVariant key;
        key = i.key();
        QTableWidgetItem *newLine = tblResult->item(row,0);
        newLine->setData(Qt::UserRole,key);
 
 
        cout << i.key() << ": " << i.value() << endl;
        row++;
    }

QHash<QString, double>   results = ReturnResults();
    int row = 0;
    QHashIterator<QString, double>  i(results);
    while (i.hasNext()) {
        i.next();
        QVariant key;
        key = i.key();
        QTableWidgetItem *newLine = tblResult->item(row,0);
        newLine->setData(Qt::UserRole,key);


        cout << i.key() << ": " << i.value() << endl;
        row++;
    }

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Any help will be much appreciated.

RT

[ChiliPalmer]

The QTableWidgetItem has to be created by hand, so the first question would be wether you did that. Otherwise QTableWidget::item returns 0.
If the code you posted is supposed to create the table, it would have to look like this:

QHash<QString, double> results = ReturnResults();
tblResult->setRowCount(results.size());
int row = 0;
QHashIterator<QString, double> i(results);
while (i.hasNext()) {
    i.next();
    QVariant key;
    key = i.key();
    QTableWidgetItem *newLine = new QTableWidgetItem();
    newLine->setData(Qt::UserRole,key);
    tblResult->setItem(row, 0, newLine);
 
    cout << i.key() << ": " << i.value() << endl;
    row++;
}

QHash<QString, double> results = ReturnResults();
tblResult->setRowCount(results.size());
int row = 0;
QHashIterator<QString, double> i(results);
while (i.hasNext()) {
    i.next();
    QVariant key;
    key = i.key();
    QTableWidgetItem *newLine = new QTableWidgetItem();
    newLine->setData(Qt::UserRole,key);
    tblResult->setItem(row, 0, newLine);
     
    cout << i.key() << ": " << i.value() << endl;
    row++;
}

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