Row index change when using QSortFilterProxyModel after sorting in QT4

[Lykurg]

Ok, then I had get you wrong. Sorry.

The Solution for your problem is pretty simple:

QVariant MySortFilterProxyModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (role != Qt::DisplayRole)
        return QVariant();
    if (orientation == Qt::Horizontal)
        return QSortFilterProxyModel::headerData(section, orientation, role);
    return section + 1;
}

QVariant MySortFilterProxyModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (role != Qt::DisplayRole)
        return QVariant();
    if (orientation == Qt::Horizontal)
        return QSortFilterProxyModel::headerData(section, orientation, role);
    return section + 1;
}

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[quantity]

Your solution just solves my problem. Thank you very much!

I wonder how operations perform when there's a proxy model attached to a source model. It seems that a method (virtual method declared in their parent) is first invoked in the proxy model. If we override the method and did not invoke its parent's one, corresponding method will not be invoked. Actually, it's the QSortFilterProxyModel::method() invokes the corresponding method in source model. Is it right?