Qt Qml-如何在其定义中使用组件？

Question

I have to implement TreeView in qml . Basically because each subtree is just TreeView itself, i want to use TreeView component in TreeView definition (this is that Repeater on the end).

This is part of code where i reference the component i am defining.

You can see that rootDelegate is actually id of the Component .

Problem is Qt gives error Unable to assign QQuickRow to QQmlComponent

 Repeater {
    model: childrens
    delegate: rootDelegate
 }

TreeView.qml

import QtQuick 2.0


Component {

    id: rootDelegate

    Column {

        Row {

            id: itemControl
            spacing: 2

            Rectangle {

                anchors.verticalCenter: parent.verticalCenter

                gradient: Gradient {
                    GradientStop { position: 0.0; color: "#EEEEEE" }
                    GradientStop { position: 1.0; color: "#404040" }
                }

                width: openChar.implicitWidth
                height: openChar.implicitHeight - 6
                radius: 3

                MouseArea {
                    anchors.fill: parent
                    cursorShape: Qt.PointingHandCursor
                }

                Text {
                    id: openChar
                    text: "+"
                    color: "black"
                    anchors.centerIn: parent
                }
            }

            Rectangle {
                height: 1
                color: "#A0A0A0"
                width: 10
                anchors.verticalCenter:  parent.verticalCenter
            }

            Text {
                text: model.text
                color: "white"
            }

        }

        Repeater {
            model: childrens
            delegate: rootDelegate
        }
    }
}

Answer 1

您正在尝试递归使用Сomponent，但Qml不允许使用