qt - QML 通过属性名称字符串访问对象属性

Question

我想在重复的组件中创建一个 QML 绑定(bind)。我想将其中一个元素的值绑定(bind)到已知对象的属性。我的问题是我要绑定(bind)的所述属性的名称将作为组件中的字符串提供。如何将属性名称解析为可用作绑定(bind)值的实际属性？

附言。如果可能的话，我想我可以将属性直接传递给中继器，但我希望能够将属性转换为字符串，因为我需要两者并且不想传递两者。

编辑:这是我想要的:

    ListModel {
        id: settingsModel
        ListElement { title: "Bed Width"; setting: "bedWidth"; }
        ListElement { title: "Bed Length"; setting: "bedLength"; }
    }

    Component {
        id: settingsDelegate

        Item {
            width: parent.width
            height: childrenRect.height

            Label {
                id: setLabel
                text: title + ":"
                width: parent.width
            }

            TextBox {
                id: setTBox
                anchors.top: setLabel.bottom
                anchors.topMargin: 5
                width: parent.width

                Binding on text {
                    when: !setTBox.isActive
                    value: settings.setting
                }

                Binding {
                    target: settings
                    property: setting
                    value: setTBox.text
                }
            }
        }
    }

    Column {
        id: settingsColumn
        spacing: 10
        anchors.left: parent.left
        anchors.right: parent.right
        anchors.top: txtSave.bottom
        anchors.topMargin: 15

        Repeater {
            model: settingsModel
            delegate: settingsDelegate
        }
    }

Answer 1

My problem is that the name of said property that I want to bind to will be provided as a string in the component. How can I resolve the property name to an actual property that can be used as the value in a binding?

如果你看the documentation for Binding您会发现 property 属性需要一个字符串 - property : string

因此您没有任何需要解决的问题，这在内部发生。

my problem is the "value: settings.setting" line

您可以尝试类似settings[setting]