如何从QSortFilterProxyModel的按列排序中排除一行

class CustomSortFilterProxyModel : public QSortFilterProxyModel
{
public:
    explicit CustomSortFilterProxyModel(QObject *parent = nullptr)
        : QSortFilterProxyModel(parent)
    {
    }

protected:
    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override
    {
        // 排除一行的排序逻辑
        if (left.row() == excludedRow() || right.row() == excludedRow()) {
            return false; // 返回false，保持原有顺序
        }

        return QSortFilterProxyModel::lessThan(left, right);
    }

private:
    int m_excludedRow = -1;

public:
    int excludedRow() const
    {
        return m_excludedRow;
    }

    void setExcludedRow(int row)
    {
        m_excludedRow = row;
    }
};

CustomSortFilterProxyModel *proxyModel = new CustomSortFilterProxyModel(this);
proxyModel->setSourceModel(originalModel);

// 设置要排除的行
proxyModel->setExcludedRow(excludedRowIndex);

// 设置排序列和排序顺序
proxyModel->setSortRole(Qt::DisplayRole);
proxyModel->sort(columnIndex, sortOrder);

// 使用proxyModel作为视图的模型
tableView->setModel(proxyModel);