Display a string in a QTableView but sort using an associated integer value

[karn862]

Well i eventually managed to do it using a custom role in the tablemodel, subclassing the proxymodel and re-implementing the lessThan method.
For people interested this is my lessThan methode in the proxymodel :

bool MyQSortFilterProxyModel::lessThan(const QModelIndex &left,
                                      const QModelIndex &right) const
{
    QVariant leftData = sourceModel()->data(left);
    QVariant rightData = sourceModel()->data(right);
 
    if(left.data(Qt::UserRole).type() == QVariant::Double)
    {
        return (left.data(Qt::UserRole).toDouble() < right.data(Qt::UserRole).toDouble());
    }
    else if(leftData.type() == QVariant::String)
    {
        return (leftData.toString() < rightData.toString());
    }
}

bool MyQSortFilterProxyModel::lessThan(const QModelIndex &left,
                                      const QModelIndex &right) const
{
    QVariant leftData = sourceModel()->data(left);
    QVariant rightData = sourceModel()->data(right);

    if(left.data(Qt::UserRole).type() == QVariant::Double)
    {
        return (left.data(Qt::UserRole).toDouble() < right.data(Qt::UserRole).toDouble());
    }
    else if(leftData.type() == QVariant::String)
    {
        return (leftData.toString() < rightData.toString());
    }
}

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