Quote Originally Posted by nikhilqt View Post
I do not edit the contents of the table, I only click on the column header of the tableview, such that the sorting of Ascending and Descending happens.
This useful?
Qt Code: 
  1. #include <QtGui>
  2. #include <QDebug>
  3. #include <QStandardItemModel>
  4.  
  5. int main(int argc, char *argv[])
  6. {
  7.  
  8.     QApplication app(argc, argv);
  9.  
  10.     QStandardItemModel model(10, 2);
  11.     model.setSortRole(Qt::EditRole);
  12.     for (int row = 0; row < 10; ++row) {
  13.         qreal value = row * 1.2345678;
  14.         QString text;
  15.         text.setNum(value, 'g', 10);
  16.  
  17.         //  Column with only a user readable DisplayRole
  18.         QStandardItem *item1 = new QStandardItem(text);
  19.         model.setItem(row, 0, item1);
  20.  
  21.         // Column with sortable EditRole
  22.         QStandardItem *item2 = new QStandardItem(text);
  23.         item2->setData(value, Qt::EditRole);
  24.         model.setItem(row, 1, item2);
  25.     }
  26.  
  28.     tv.setModel(&model);
  29.     tv.setSortingEnabled(true);
  30.     tv.horizontalHeader()->setSortIndicator(0, Qt::AscendingOrder);
  31.     tv.horizontalHeader()->setSortIndicator(1, Qt::AscendingOrder);
  32.     tv.show();
  33.  
  34.     return app.exec();
  35. }
  36.  
  37. // vi: sw=4 ts=4 et
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Column 1 sorts based on the string representation. Column 2 sorts numerically but displays in default format.