Wysota and helpers,

i did as you said..reimplement headerData ()....the thing is that i found the solution but i cant understand it, not even reading the documentation :P
here is what i found and totally works
Qt Code: 
  1. QVariant MySortModelFilter::headerData(int section, Qt::Orientation orientation, int role) const
  2. {
  3.     if (role != Qt::DisplayRole)
  4.         return QVariant();
  5.     if (orientation == Qt::Horizontal)
  6.         return QSortFilterProxyModel::headerData(section, orientation, role);
  7.     return section + 1;
  8. }
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i know that the section is the row number and i understand that if we are talking about horizontal headers the process delegates it to the same function in proxymodel...

what i dont understand is the +1 and the return of QVariant ();

hope someone can bring some light to this burned head