Maybe
//main.qml:
import QtQuick 2.5
Loader {
id: loader
source: "MyComponent.qml"
onLoaded: {
loader.item.property1 = "secret"
loader.item.property2 = 777
}
}
//MyComponent.qml:
import QtQuick 2.0
Rectangle {
id: rect
property string property1
property int property2
TextEdit {
id: text_edit
anchors.centerIn: parent
text: property1 + property2
}
}
or
//main.qml:
import QtQuick 2.5
Item {
id: main
width: 200; height: 200
property string property1: "secret"
property int property2: 777
Loader {
id: loader
source: "MyComponent.qml"
onLoaded: loader.item.text = property1 + property2
}
}
//MyComponent.qml:
import QtQuick 2.0
Rectangle {
id: rect
property alias text: text_edit.text
TextEdit {
id: text_edit
anchors.centerIn: parent
text: property1 + property2
}
}
or
import QtQuick 2.0
Rectangle {
id: rect
TextEdit {
id: text_edit
anchors.centerIn: parent
// rect.parent -> loader; rect.parent.parent -> Item with id 'main'
text: (rect.parent.parent.property1 !== undefined) ? rect.parent.parent.property1 : ""
}
}