Hi guys,

I have a QTableView with four columns. I reimplement the virtual method data( ) to align text the cells. So far, so good, but I also want to replace the cells where the value is 0 (zero) for a dash ("-"). While trying to do this, my application compiles correctly but gives an error of segmentation fault when I open the window.
See the code:

Qt Code: 
  1. QVariant TableViewQryModel::data(const QModelIndex &idx, int role) const
  2. {
  3. 	QVariant v = QSqlQueryModel::data(idx, role);
  4.  
  5. 	if (!idx.isValid())
  6. 		return QVariant( );
  7.  
  8. 	if (role == Qt::DisplayRole && idx.column() > 0 && 
  9. 			index(idx.row(), idx.column(), idx.parent()).data().toString() == "0")
  10. 	{
  11. 		return QVariant("-");
  12. 	}
  13. 	else if (role == Qt::TextAlignmentRole)
  14. 	{
  15. 		return int(Qt::AlignCenter | Qt::AlignVCenter);
  16. 	}
  17.  
  18. 	return (v);
  19. }
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Thanks,

Marcelo E. Geyer