<![CDATA[QList of C++ custom objects to QML]]>Hello,

Here is my need. I am reading an XML file in the C++ side of my application, and create some C++ objects of mine. After the reading, I send a signal to the QML to tell my GUI it has some QML components to dynamically instanciates.
I want those components to be initialized with the properties of the C++ objects I have created during the reading of the XML file.
So the idea here is to send a list of C++ objects to the QML, and parse that list inside the QML to create components.
I had a look at the QVariant class, but don't really know how to use it.
For example, I currently have a QList<MyObjects*> that I want to expose to the QML via a Q_INVOKABLE method.
How do I do that? Does a QList<QVariant*> will be enought?

Regards,

]]>https://forum.qt.io/topic/71657/qlist-of-c-custom-objects-to-qmlRSS for NodeTue, 14 Apr 2026 14:39:13 GMTTue, 27 Sep 2016 09:37:32 GMT60<![CDATA[Reply to QList of C++ custom objects to QML on Wed, 28 Sep 2016 09:45:13 GMT]]>Hello,

Ok thanks for this additional explanation.
I'll give it a try and let you know if I face some difficulties.

Regards

]]>https://forum.qt.io/post/350476https://forum.qt.io/post/350476Wed, 28 Sep 2016 09:45:13 GMT<![CDATA[Reply to QList of C++ custom objects to QML on Tue, 27 Sep 2016 09:50:34 GMT]]>@bguivarch said in QList of C++ custom objects to QML:

With my understanding of QML, I would say that I have to.

exactly, since QML uses the meta type system.

]]>https://forum.qt.io/post/350167https://forum.qt.io/post/350167Tue, 27 Sep 2016 09:50:34 GMT<![CDATA[Reply to QList of C++ custom objects to QML on Tue, 27 Sep 2016 09:47:38 GMT]]>Hello,

Thanks for your answer.

To access the properties of the objects in the list, do I have to convert these properties to Q_PROPERTY or is that unnecessary? With my understanding of QML, I would say that I have to.

Regards

]]>https://forum.qt.io/post/350165https://forum.qt.io/post/350165Tue, 27 Sep 2016 09:47:38 GMT<![CDATA[Reply to QList of C++ custom objects to QML on Tue, 27 Sep 2016 09:42:37 GMT]]>@bguivarch said in QList of C++ custom objects to QML:

How do I do that? Does a QList<QVariant*> will be enought?

Yes. But use QList<QVariant> instead. When you registered the list contents (in the variant) to the meta type system (Q_DECLARE_METATYPE) you can access it's QObject properties from QML.

]]>https://forum.qt.io/post/350163https://forum.qt.io/post/350163Tue, 27 Sep 2016 09:42:37 GMT