ComboBox problem with using model(int) and delegate(ItemDelegate)

kingsta

Hi

I have a problem with ComboBox. I have a C++ class that is name "program". I send some data from C++ to Qml. The data size in ComboBox can changes so I prefer use

model: program.kategoriSayisi  //returns int value to ComboBox model. For example 9.

I send values from C++ to Qml ComboBox with this code.

text: program.kategoriAdi[index] //returns QVariantList value. I get values with index.

Problems:

In the first openning tha qml page, I cant see values. I see empty value. But I click the ComboBox, I can see values in dropdown list.
When I select the value in dropdown list, I can't see the selected value. I see empty value.

Where is my mistake?

The code

ComboBox {
    id: katgKutusu
    anchors.left: parent.left
    anchors.leftMargin: dp(2)
    anchors.top: eklenecekKatgYazisi.bottom
    anchors.topMargin: dp(2)
    width: parent.width*0.7

    textRole: "text"

    down: true
    model: program.kategoriSayisi // program.kategoriSayisi returns int value to ComboBox model. For example 9.
    delegate: ItemDelegate {
        id: katgObjeleri
        contentItem: Text {
            text: program.kategoriAdi[index] //program.kategoriAdi returns QVariantList value. I get values with index.
            font.pixelSize: dp(4)
            elide: Text.ElideRight
            verticalAlignment: Text.AlignVCenter
        }

        onClicked: {
            console.log("clicked:", program.kategoriAdi[index]) //When I click the some object in combobox, I can see the selected name
            console.log("index:", index)
            katgKutusu.currentIndex = index           //Is it wrong?
        }
    }
    currentIndex: 0 //I want to show first value in combobox

      onAccepted: {
          if (find(editText) === -1)
              currentIndex = find(textAt(index))

          console.log("onAccepted") //never called!
          console.log("currentIndex: ", currentIndex) //never called!
      }
}

kingsta

Hello guys

After a few try, I found the solution. I hope it helps people.

ComboBox {
            id: katgKutusu
            anchors.horizontalCenter: parent.horizontalCenter
            anchors.verticalCenter: parent.verticalCenter
            width: parent.width*0.5

            textRole: "text"            

            signal katgSecildi(var sira) //send index value (sira) to outside of ItemDelegate

            down: true
            model: program.kategoriSayisi
            delegate: ItemDelegate {
                id: katgObjeleri
                property alias seciliYazi: yazi.text
                contentItem: Text {
                    id: yazi
                    text: program.kategoriAdi[index]
                    font.pixelSize: dp(3.5)
                    font.family: yazikarakteri1
                    color: tema.onplanRenk
                    elide: Text.ElideRight
                    verticalAlignment: Text.AlignVCenter
                }
                onClicked: {
                    katgKutusu.katgSecildi(index) //send index value to outside of ItemDelegate
                }
            }
            onKatgSecildi: displayText = program.kategoriAdi[sira]  //assign index value of selected value to displayText'
            displayText: program.kategoriAdi[0] //in first run, it shows first value of array
        }
        }