Interact with Dynamic Object Created

[AboutClod]

Hi everyone, this is my 2nd post on qt-forum and i'm stuck in a stupid issue.
I've created a custom object called "TabTPDef.qml", and I use this object min. 4 times.
I've created its with the following code, when the user click on the button.

 var component;
                       var sprite;
                       component = Qt.createComponent("TabTPDef.qml");
                       sprite = component.createObject(dhsbLink, {"x": 0, "y": 0});

Now, in TabTPDef there is a button which call a C++ method to populate the 'TabTPDEF'. The populating works well, but it works for the all the TabTPDef instantiated. The onClicked for call the c++ method is descripted in 'TabTPDef' and i suppose the problem is here, because there isn't reference to the new component instantiated.

Here how I create the new component:

buttTp2.mouseButton.onClicked: {
    var component;
                       var sprite;
                       component = Qt.createComponent("TabTPDef.qml");
                       sprite = component.createObject(dhsbLink, {"x": 0, "y": 0,});
 
    sprite.anchors.top = parent.top
    sprite.anchors.topMargin = 100
    sprite.anchors.left = parent.left
    sprite.anchors.leftMargin = 450
    sprite.anchors.bottom = dhsbLink.bottom
    sprite.frateto.txtButt.text = "TP2";
    sprite.frateto.buttonMain.state = "off"

}

This is the TabTPDef, which contains other two custom object

Item {
    id: tabTPDEF
    height: 700
    width: 325
    property alias soreta : soreta
    property alias frateto : frateto

    SwipeView {
        id: swipe
       currentIndex: 0
       clip: true
        anchors.fill: parent

        TabTPMonitor{
        id: frateto
        }
        TabTP{
         id: soreta
        }
    }
....
}

Sorry for the mistakes, i'm still learning qt, and my english is not so well.
Thank you!

[6thC]

@AboutClod

http://doc.qt.io/qt-5/qtqml-javascript-dynamicobjectcreation.html
As a guess you're object isn't there when you tried using it? It may also have failed (maybe your component source is invalid / producing errors).

You've missed all of this part of creating objects dynamically:

if (component.status == Component.Ready)
        finishCreation();
    else
        component.statusChanged.connect(finishCreation);
}

function finishCreation() {
    if (component.status == Component.Ready) {
        sprite = component.createObject(appWindow, {"x": 100, "y": 100});
        if (sprite == null) {
            // Error Handling
            console.log("Error creating object");
        }
    } else if (component.status == Component.Error) {
        // Error Handling
        console.log("Error loading component:", component.errorString());
    }