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    Solved QML objectModel

    QML and Qt Quick
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    • ODБOï
      ODБOï last edited by

      Hi,
      i'm trying to create objects list (qml side) with values that i read in file with c++ methode.

      when on_PropValsChanged is emited i have to create object with the properties inside _propVals variant, and i need to keep the objects somewhere i can access it whenever i need

      So i tryed to put my objects in a ObjectModel as described here
      http://doc.qt.io/qt-5/qml-qtqml-models-objectmodel.html
      and show them in ListView

      but as soon i click on my ListView (to scroll) my app crashes

      calling objectMod.get(some index)._name will also result to a crash

      The process was ended forcefully.

      // object creation

       on_PropValsChanged: {
           
              var tmp = _propVals
              var comp = Qt.createComponent("Obj.qml")
              var obj = comp.createObject(cont)
       
              obj._vId=tmp[0]
              obj._name=tmp[1]
              obj._alias = tmp[2]
              obj._slaveId= tmp[3]
              obj._storageType =tmp[4]
              obj._dataType =tmp[5]
              obj._bitSz= tmp[6]
              obj._bitOffset =tmp[7]
              obj._slaveFixAdress = tmp[8]
              obj._type = tmp[9]
              obj._direction = tmp[10]
              obj._index = tmp[11]
              obj._motionType = tmp[12]
              obj._motionDirection = tmp[13]
              obj._motionIndex = tmp[14]
      
              objectMod.append(obj)
         
          }
        ObjectModel {
              id: objectMod
              onChildrenChanged: console.log(children) // the objects are added with the prop values correctly
      
          }
      

      //Obj.qml

      Rectangle {
          property string _vId : ""
          property string _name : ""
          property string _alias : ""
          property string _slaveId : ""
          property string _storageType : ""
          property string _dataType : ""
          property string _bitSz : ""
          property string _bitOffset : ""
          property string _slaveFixAdress : ""
          property string _type : ""
          property string _direction : ""
          property string _index : ""
          property string _motionType : ""
          property string _motionDirection : ""
          property string _motionIndex : ""
      
      
          ColumnLayout{
              anchors.fill: parent
      
              RowLayout{
                  Text{
                      text : "variable id :"
                  }
                  Text{
                      text : _vId
                  }
              }
      }
      

      If someone has a better approche please tell me how should i do.
      qt5.11 mingw32

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      • ODБOï
        ODБOï last edited by

        finnaly i used qobjectlist-based-model
        http://doc.qt.io/qt-5/qtquick-modelviewsdata-cppmodels.html#qobjectlist-based-model

        1 Reply Last reply Reply Quote 1
        • ODБOï
          ODБOï last edited by

          finnaly i used qobjectlist-based-model
          http://doc.qt.io/qt-5/qtquick-modelviewsdata-cppmodels.html#qobjectlist-based-model

          1 Reply Last reply Reply Quote 1
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