As the documentation says: http://doc.qt.io/qt-5/qml-qtqml-component.html
<http://doc.qt.io/qt-5/qml-qtqml-component.html>
Dynamically created instances can be deleted with the destroy() method. See
Dynamic QML Object Creation from JavaScript for more information.
So I tested you code by commenting oldParent.destroy(); and it worked just
fine. you can set the opacity of oldParent to zero to be able to see this.
> On 20 Dec 2015, at 16:24, Peter Klosowski <klo...@gmail.com> wrote:
>
> Hello,
>
> I am curious as to whether the following is expected behavior or a bug:
>
> import QtQuick 2.5
> import QtQuick.Window 2.1
>
> Window {
> id: window
> width: 1280; height: 960
> visible: true
>
> Component {
> id: component
> Rectangle {
> width: 64; height:64
> color: "blue"
> }
> }
>
> Item {
> id: root
> anchors.fill: parent
>
> Rectangle {
> anchors.right: parent.right
> width: 64; height:64
> color: "red"
>
> MouseArea {
> anchors.fill: parent
>
> property var target: null
>
> onPressed: {
> if (oldParent) {
> // The blue rectangle is initially created as a child
> of oldParent.
> target = component.createObject(oldParent, {"x": 0,
> "y": 0});
> }
> }
>
> onReleased: {
> if (oldParent) {
> // How can I transfer ownership to newParent?
> // The blue rectangle should stay alive as a child of
> newParent.
> // (It appears the following line is not sufficient!)
> target.parent = newParent;
> oldParent.destroy();
> }
> }
> }
> }
>
> Item { id: oldParent; anchors.fill: parent }
> Item { id: newParent; anchors.fill: parent }
> }
> }
>
> Also, if there is a workaround to make this work (i.e. make the blue
> rectangle stay after the mouse is released), I would love to hear about it. I
> have posted about this on the forums, but I have not received a response so
> far.
>
> https://forum.qt.io/topic/61903/dynamically-created-item-destroyed-with-original-parent-despite-reparenting
>
> <https://forum.qt.io/topic/61903/dynamically-created-item-destroyed-with-original-parent-despite-reparenting>
>
> Best regards,
> kloffy
> _______________________________________________
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