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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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  • Aviral 0A Aviral 0

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

    JonBJ Offline
    JonBJ Offline
    JonB
    wrote on last edited by JonB
    #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.

    Aviral 0A 1 Reply Last reply
    0
    • JonBJ JonB

      @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.

      Aviral 0A Offline
      Aviral 0A Offline
      Aviral 0
      wrote on last edited by
      #35

      Screenshot (226).png

      JonBJ 1 Reply Last reply
      0
      • Aviral 0A Aviral 0

        Screenshot (226).png

        JonBJ Offline
        JonBJ Offline
        JonB
        wrote on 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.

        Aviral 0A 1 Reply Last reply
        0
        • JonBJ JonB

          @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.

          Aviral 0A Offline
          Aviral 0A Offline
          Aviral 0
          wrote on last edited by
          #37

          @JonB Yes they have childItems

          JonBJ 1 Reply Last reply
          0
          • Aviral 0A Aviral 0

            @JonB Yes they have childItems

            JonBJ Offline
            JonBJ Offline
            JonB
            wrote on 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.

            Aviral 0A 1 Reply Last reply
            0
            • JonBJ JonB

              @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.

              Aviral 0A Offline
              Aviral 0A Offline
              Aviral 0
              wrote on 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

              JonBJ 1 Reply Last reply
              0
              • Aviral 0A Aviral 0

                @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

                JonBJ Offline
                JonBJ Offline
                JonB
                wrote on 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.

                Aviral 0A 1 Reply Last reply
                0
                • JonBJ JonB

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

                  Aviral 0A Offline
                  Aviral 0A Offline
                  Aviral 0
                  wrote on last edited by Aviral 0
                  #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]
                  
                  JonBJ 1 Reply Last reply
                  0
                  • Aviral 0A Aviral 0

                    @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]
                    
                    JonBJ Offline
                    JonBJ Offline
                    JonB
                    wrote on 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.

                    Aviral 0A 1 Reply Last reply
                    0
                    • JonBJ JonB

                      @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.

                      Aviral 0A Offline
                      Aviral 0A Offline
                      Aviral 0
                      wrote on last edited by
                      #43

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

                      jsulmJ JonBJ 2 Replies Last reply
                      0
                      • Aviral 0A Aviral 0

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

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on 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
                        • Aviral 0A Aviral 0

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

                          JonBJ Offline
                          JonBJ Offline
                          JonB
                          wrote on last edited by JonB
                          #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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