QVariant list

[mrsinger]

I have a QVariant _list which get sets to a QVariant(list) where list is QList<QVariant> list;

mylist contains the result of a database query. On the next query, I want to append the new results to the existing one. I tried this

QList<QVariant> tmp = _list.toList();

tmp +=  tableMessages.getSystemMessages( _limit , _page, _message_type, _subsystem );

_list = QVariant(tmp);

But then I end up with a QVariantList which is not what I want.

[A Former User]

Hi, and welcome to the Qt Forum!
I'm not sure if I understood you correctly. You got this: QList<QVariant> list to store all your QVariant values. Now you read something from a database: QList<QVariant> newData. And you want to append newData to list, right?

[mrsinger]

@Wieland right

[A Former User]

Ok, so how about this:

    QList<QVariant> list;
    list.append("old");
    list.append("data");

    for (int i=0; i<10; i++) {
        QList<QVariant> newData;
        newData.append(i);
        newData.append("one");
        newData.append("two");
        newData.append("three");
        list.append(newData);
    }

    qDebug() << list;

Does that do what you want?