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QTableWidget with different types

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  • E Offline
    E Offline
    evergreen
    wrote on last edited by SGaist
    #1

    Hello, I would like to display an editable QTableWidget, but with some item only editable as int and some others as strings.
    I can't find a solution in the doc.

    Is it possible? How could it be done?

    Thanks

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    • S Offline
      S Offline
      silver47
      wrote on last edited by
      #2

      Well, you can set any widget into Cell, for example:
      QLineEdit for strings and QSpinBox for digits.
      @QTableWidget::setCellWidget ( int row, int column, QWidget * widget )@

      sorry for my english :(

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      • E Offline
        E Offline
        evergreen
        wrote on last edited by
        #3

        That's a good idea. Thanks.

        However, I've just tested it and there's a problem :
        My QTableWidget is composed by about a thousand cells. So when I apply the method that create QLineEdit or QSpinBox, it takes about 5 seconds to display while when I was using only QTableWidgetItem it was immediate.

        So, If someone know a way to specify the type of a QTableWidgetItem, it would be much better.

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        • S Offline
          S Offline
          silver47
          wrote on last edited by
          #4

          QTableWidget provides basicaly possibility and works slowly. For more flexible possibility use QStandardItemModel & QTableView or QAbstractItemModel & QTableView

          sorry for my english :(

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          • E Offline
            E Offline
            evergreen
            wrote on last edited by
            #5

            I found a more simple solution with the class QIntValidator
            I put a QLineEdit with this validator on the item of the table I want to edit.
            Works perfectly.

            Thanks for helps.

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            • M Offline
              M Offline
              MrMaavin
              wrote on last edited by
              #6

              I used this solution where you have a QLineEdit in each cell.

              for(int trow=0; trow <= 2; trow++ )
                  {
                      for(int tcolumn=0; tcolumn <= 3; tcolumn++ )
                      {
                          QLineEdit * tableline = new QLineEdit;
                          tableline->setValidator( new QDoubleValidator(0, 100, 2, this) );
                          ui->tableWidget->setCellWidget ( trow, tcolumn,  tableline);
                      }
              }
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              • VRoninV Offline
                VRoninV Offline
                VRonin
                wrote on last edited by
                #7

                probably it's just my personal and never ending hate for setCellWidget but, especially for cases like this one where it applies to many cells, a combination of setFlag and a QStyledItemDelegate derived class is the way to go

                "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
                ~Napoleon Bonaparte

                On a crusade to banish setIndexWidget() from the holy land of Qt

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