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Index undefined for elements in ObjectModel?

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  • B Offline
    B Offline
    billconan
    wrote on last edited by
    #1

    according to Qt document http://qt-project.org/doc/qt-5/qml-qtqml-models-objectmodel.html#index-prop

    An item can determine its index within the model via the index attached property.

    my object model code:
    @ ObjectModel {
    id: itemModel

        Rectangle {
            width: view.width; height: view.height
            color: "#FFFEF0"
            Text { text: "Page 1"; font.bold: true; anchors.centerIn: parent }
    
            Component.onDestruction: if (printDestruction) print("destroyed 1")
        }
        Rectangle {
            width: view.width; height: view.height
            color: "#F0FFF7"
            Text { text: "Page 2"; font.bold: true; anchors.centerIn: parent }
    
            Component.onDestruction: if (printDestruction) print("destroyed 2")
        }
        Rectangle {
            width: view.width; height: view.height
            color: view.currentIndex == index ? "blue" : "white"
            Text { text: "Page 3"; font.bold: true; anchors.centerIn: parent }
    
            Component.onDestruction: if (printDestruction) print("destroyed 3")
        }@
    

    but when I ran, I saw this:

    qrc:///main.qml:30: ReferenceError: index is not defined

    what's the problem?

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    0
    • p3c0P Offline
      p3c0P Offline
      p3c0
      Moderators
      wrote on last edited by
      #2

      Looks like a bug to me. The count property works but not the index.

      157

      1 Reply Last reply
      0
      • B Offline
        B Offline
        billconan
        wrote on last edited by
        #3

        will file a bug.

        thanks!

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        0
        • dheerendraD Offline
          dheerendraD Offline
          dheerendra
          Qt Champions 2022
          wrote on last edited by
          #4

          Did you try with itemModel.index ?

          Dheerendra
          @Community Service
          Certified Qt Specialist
          http://www.pthinks.com

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          0
          • p3c0P Offline
            p3c0P Offline
            p3c0
            Moderators
            wrote on last edited by
            #5

            That too doesn't work.

            157

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