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Tablesort

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  • MegamouseM Offline
    MegamouseM Offline
    Megamouse
    wrote on last edited by
    #1

    I want my table to be always sorted alphabetically by its second column after it was sorted by another.

    Like if i have 3 cells in column 2 that all have the same value I want those three rows to be sorted by its first column

    not sorted:

    hello   | 1
    my      | 5
    friends | 1
    

    sorted by second column ('hello' and 'friends' are wrong):

    hello   | 1
    friends | 1
    my      | 5
    

    sorted by second column (preferred):

    friends | 1
    hello   | 1
    my      | 5
    
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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      You might be interested by the QxtSortFilterProxyModel class.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • MegamouseM Offline
        MegamouseM Offline
        Megamouse
        wrote on last edited by
        #3

        I don't want to use Qxt, I don't even know what that is

        SGaistS 1 Reply Last reply
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        • MegamouseM Offline
          MegamouseM Offline
          Megamouse
          wrote on last edited by Megamouse
          #4

          why isn't there a setter for "defaultSortColumn" or something like that....
          And why can't I override QTableWidget::sortItems to do that myself....

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          • MegamouseM Megamouse

            I don't want to use Qxt, I don't even know what that is

            SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #5

            @Megamouse said in Tablesort:

            I don't want to use Qxt, I don't even know what that is

            Then before saying no, you could take the time to check. Note, that in this case, it won't help you, I mixed filtering and sorting so whatever...

            @Megamouse said in Tablesort:

            why isn't there a setter for "defaultSortColumn" or something like that....
            And why can't I override QTableWidget::sortItems to do that myself....

            Because for more advanced sorting and filtering there's QSortFilterProxyModel.

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • MegamouseM Offline
              MegamouseM Offline
              Megamouse
              wrote on last edited by
              #6

              wow that's awfully complicated for a common feature like that

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              • Christian EhrlicherC Online
                Christian EhrlicherC Online
                Christian Ehrlicher
                Lifetime Qt Champion
                wrote on last edited by
                #7

                QTableWidget is a convenience class - if you need more control over the data you have to use QTableView and a custom model.
                For you problem it should be enough to derive from QTableWidgetItem and override
                operator <(const QTableWidgetItem &o) const

                Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                Visit the Qt Academy at https://academy.qt.io/catalog

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                • MegamouseM Offline
                  MegamouseM Offline
                  Megamouse
                  wrote on last edited by
                  #8

                  thx. I forgot I already have that operator override, I'll adjust it accordingly.

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