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  4. How to Insert checkbox in root of Qtreeview. Treeview is created by using QDOMDocument reading XML file.
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How to Insert checkbox in root of Qtreeview. Treeview is created by using QDOMDocument reading XML file.

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  • A Aviral 0
    5 Dec 2022, 09:14

    @JonB Please look at the image I jhave attached!
    Image(https://wetransfer.com/downloads/a9b408bd97b18185f4fc64ac8053fbb520221205051935/8f1754)

    J Offline
    J Offline
    JonB
    wrote on 5 Dec 2022, 09:16 last edited by JonB 12 May 2022, 09:22
    #34

    @Aviral-0
    Then upload an image to your post (best, the post toolbar has "cloud" icon tooltip Upload Image), or at worst given a link to where the image can be seen. If you think I am going to download an image you want me to look at from a site , I am not.

    A 1 Reply Last reply 5 Dec 2022, 09:24
    0
    • J JonB
      5 Dec 2022, 09:16

      @Aviral-0
      Then upload an image to your post (best, the post toolbar has "cloud" icon tooltip Upload Image), or at worst given a link to where the image can be seen. If you think I am going to download an image you want me to look at from a site , I am not.

      A Offline
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      Aviral 0
      wrote on 5 Dec 2022, 09:24 last edited by
      #35

      Screenshot (226).png

      J 1 Reply Last reply 5 Dec 2022, 09:28
      0
      • A Aviral 0
        5 Dec 2022, 09:24

        Screenshot (226).png

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        J Offline
        JonB
        wrote on 5 Dec 2022, 09:28 last edited by
        #36

        @Aviral-0
        [I presume you also want a checkbox against the devices node.] So you want a checkbox against each node in the tree, but not against leaves? So check to see (in data()) whether the DomItem item for the index has any children or not.

        A 1 Reply Last reply 5 Dec 2022, 09:47
        0
        • J JonB
          5 Dec 2022, 09:28

          @Aviral-0
          [I presume you also want a checkbox against the devices node.] So you want a checkbox against each node in the tree, but not against leaves? So check to see (in data()) whether the DomItem item for the index has any children or not.

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          Aviral 0
          wrote on 5 Dec 2022, 09:47 last edited by
          #37

          @JonB Yes they have childItems

          J 1 Reply Last reply 5 Dec 2022, 09:50
          0
          • A Aviral 0
            5 Dec 2022, 09:47

            @JonB Yes they have childItems

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            J Offline
            JonB
            wrote on 5 Dec 2022, 09:50 last edited by
            #38

            @Aviral-0
            I know! So test for that when deciding whether to request a checkbox or not, in place of your && !index.parent().isValid() which is currently restricting them to root-only node.

            A 1 Reply Last reply 5 Dec 2022, 10:28
            0
            • J JonB
              5 Dec 2022, 09:50

              @Aviral-0
              I know! So test for that when deciding whether to request a checkbox or not, in place of your && !index.parent().isValid() which is currently restricting them to root-only node.

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              Aviral 0
              wrote on 5 Dec 2022, 10:28 last edited by
              #39

              @JonB
              Yes, but removing that causes checkboxes at every line,
              I only want at items which are root or parent to some items. Not on leafs

              J 1 Reply Last reply 5 Dec 2022, 10:31
              0
              • A Aviral 0
                5 Dec 2022, 10:28

                @JonB
                Yes, but removing that causes checkboxes at every line,
                I only want at items which are root or parent to some items. Not on leafs

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                J Offline
                JonB
                wrote on 5 Dec 2022, 10:31 last edited by
                #40

                @Aviral-0
                You are ignoring what I am writing. I told you how to do that, you have not acted on it.

                A 1 Reply Last reply 5 Dec 2022, 12:08
                0
                • J JonB
                  5 Dec 2022, 10:31

                  @Aviral-0
                  You are ignoring what I am writing. I told you how to do that, you have not acted on it.

                  A Offline
                  A Offline
                  Aviral 0
                  wrote on 5 Dec 2022, 12:08 last edited by Aviral 0 12 May 2022, 12:08
                  #41

                  @JonB I have tried it bro... I tried removing !index.parent.isvalid()
                  and placing some other functions.
                  I am not fully understanding of what you are suggesting. can you tell me what to write there?

                  Screenshot (227).png

                  QVariant DomModel::data(const QModelIndex &index, int role) const
                  {
                      if (!index.isValid())
                          return QVariant();
                  
                      DomItem *item = static_cast<DomItem*>(index.internalPointer());
                      const QDomNode node = item->node();
                  
                     // if ( role == Qt::CheckStateRole && !index.parent().isValid())
                      //if ( role == Qt::CheckStateRole && index.column() == 0 )
                      if ( role == Qt::CheckStateRole && (index.column() == 0)  )
                      {
                          return static_cast< int >( item->isChecked() ? Qt::Checked : Qt::Unchecked );
                  }
                      if (role != Qt::DisplayRole)
                          return QVariant();
                  
                      switch (index.column()) {
                          case 0:
                              return node.nodeName();
                          case 1:
                          {
                              const QDomNamedNodeMap attributeMap = node.attributes();
                              QStringList attributes;
                              for (int i = 0; i < attributeMap.count(); ++i) {
                                  QDomNode attribute = attributeMap.item(i);
                                  attributes << attribute.nodeName() + "=\""
                                                + attribute.nodeValue() + '"';
                              }
                              return attributes.join(' ');
                          }
                          case 2:
                              return node.nodeValue().split('\n').join(' ');
                          default:
                              break;
                  
                      }
                  
                      return item->data(index.column());
                  }
                  
                  
                  Qt::ItemFlags DomModel::flags(const QModelIndex &index) const
                  {
                      if (!index.isValid())
                          return Qt::NoItemFlags;
                  
                      Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
                  
                      if ( index.column() == 0 )
                          flags |= Qt::ItemIsUserCheckable;
                      return flags;
                  }
                  //! [6]
                  
                  J 1 Reply Last reply 5 Dec 2022, 12:51
                  0
                  • A Aviral 0
                    5 Dec 2022, 12:08

                    @JonB I have tried it bro... I tried removing !index.parent.isvalid()
                    and placing some other functions.
                    I am not fully understanding of what you are suggesting. can you tell me what to write there?

                    Screenshot (227).png

                    QVariant DomModel::data(const QModelIndex &index, int role) const
                    {
                        if (!index.isValid())
                            return QVariant();
                    
                        DomItem *item = static_cast<DomItem*>(index.internalPointer());
                        const QDomNode node = item->node();
                    
                       // if ( role == Qt::CheckStateRole && !index.parent().isValid())
                        //if ( role == Qt::CheckStateRole && index.column() == 0 )
                        if ( role == Qt::CheckStateRole && (index.column() == 0)  )
                        {
                            return static_cast< int >( item->isChecked() ? Qt::Checked : Qt::Unchecked );
                    }
                        if (role != Qt::DisplayRole)
                            return QVariant();
                    
                        switch (index.column()) {
                            case 0:
                                return node.nodeName();
                            case 1:
                            {
                                const QDomNamedNodeMap attributeMap = node.attributes();
                                QStringList attributes;
                                for (int i = 0; i < attributeMap.count(); ++i) {
                                    QDomNode attribute = attributeMap.item(i);
                                    attributes << attribute.nodeName() + "=\""
                                                  + attribute.nodeValue() + '"';
                                }
                                return attributes.join(' ');
                            }
                            case 2:
                                return node.nodeValue().split('\n').join(' ');
                            default:
                                break;
                    
                        }
                    
                        return item->data(index.column());
                    }
                    
                    
                    Qt::ItemFlags DomModel::flags(const QModelIndex &index) const
                    {
                        if (!index.isValid())
                            return Qt::NoItemFlags;
                    
                        Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
                    
                        if ( index.column() == 0 )
                            flags |= Qt::ItemIsUserCheckable;
                        return flags;
                    }
                    //! [6]
                    
                    J Offline
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                    JonB
                    wrote on 5 Dec 2022, 12:51 last edited by
                    #42

                    @Aviral-0
                    I am not your "bro"! You need to replace the original && !index.parent().isValid() with the condition for QDomNode node not having any children.

                    A 1 Reply Last reply 5 Dec 2022, 14:55
                    0
                    • J JonB
                      5 Dec 2022, 12:51

                      @Aviral-0
                      I am not your "bro"! You need to replace the original && !index.parent().isValid() with the condition for QDomNode node not having any children.

                      A Offline
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                      Aviral 0
                      wrote on 5 Dec 2022, 14:55 last edited by
                      #43

                      @JonB You don't know anything, just arrogant rude. I didn't find any solutions to my problem from you!

                      J J 2 Replies Last reply 5 Dec 2022, 15:48
                      0
                      • A Aviral 0
                        5 Dec 2022, 14:55

                        @JonB You don't know anything, just arrogant rude. I didn't find any solutions to my problem from you!

                        J Offline
                        J Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on 5 Dec 2022, 15:48 last edited by
                        #44

                        @Aviral-0 said in How to Insert checkbox in root of Qtreeview. Treeview is created by using QDOMDocument reading XML file.:

                        I didn't find any solutions to my problem from you!

                        What about "You need to replace the original && !index.parent().isValid() with the condition for QDomNode node not having any children." from @JonB - did you do that?

                        Please state polite...

                        https://forum.qt.io/topic/113070/qt-code-of-conduct

                        1 Reply Last reply
                        0
                        • A Aviral 0
                          5 Dec 2022, 14:55

                          @JonB You don't know anything, just arrogant rude. I didn't find any solutions to my problem from you!

                          J Offline
                          J Offline
                          JonB
                          wrote on 5 Dec 2022, 16:05 last edited by JonB 12 May 2022, 16:05
                          #45

                          @Aviral-0 said in How to Insert checkbox in root of Qtreeview. Treeview is created by using QDOMDocument reading XML file.:

                          @JonB You don't know anything, just arrogant rude. I didn't find any solutions to my problem from you!

                          Just wow! I have made over a dozen posts so far over a week trying to help you solve your issues. Told you at each stage what to do, and at least a couple of times what to do now. Why don't you have a look back up? Thanks for nothing, bro.

                          1 Reply Last reply
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                          5 Dec 2022, 14:55

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