Hi,
I have a QTableModel with 5 columns, but when I return labels for more than 4 columns the horizontal headerview isn't shown at all. Here is a simple application to highlight the problem. Save it as main.cpp and compile it using qmake -project && qmake && make

Qt Code: 
  1. #include <QtGui>
  2.  
  3. class TableModel : public QAbstractTableModel
  4. {
  5.   Q_OBJECT
  6.   public: 
  7.     TableModel(QObject* parent = 0) : QAbstractTableModel(parent)
  8.     {
  9.     }
  10.   protected:
  11.      protected:
  12.     int rowCount(const QModelIndex & parent = QModelIndex()) const
  13.     {
  14.       return 20;
  15.     }
  16.  
  17.     int columnCount(const QModelIndex & parent = QModelIndex()) const
  18.     {
  19.       return 5;
  20.     }
  21.  
  22.     QVariant data(const QModelIndex & index, int role = Qt::DisplayRole) const
  23.     {
  24.       if (index.isValid() && role == Qt::DisplayRole) {
  25.     return QString("index: %1,%2").arg(index.row()).arg(index.column());
  26.       }
  27.       return QVariant();
  28.     }
  29.  
  30.     QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const
  31.     {
  32.       if (orientation == Qt::Horizontal) {
  33.     switch(section) {
  34.       case 0: return QString("one");
  35.       case 1: return QString("two");
  36.       case 2: return QString("three");
  37.       case 3: return QString("four");
  38.       case 4: return QString("five");
  39.     }
  40.       }
  41.       return QVariant();
  42.     }
  43. };
  44.  
  45. int main(int argc, char** argv)
  46. {
  47.   QApplication app(argc, argv);
  48.   TableModel* model = new TableModel();
  49.   QTableView* view = new QTableView;
  50.   view->setModel(model);
  51.   view->show();
  52.   return app.exec();
  53. }
  54. #include "main.moc"
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Any Ideas?

Thanx in advance
momesana