<![CDATA[[SOLVED] Populate a QML ListView with a custom C++ model]]>Hi,

I have a custom Model representing a tree based on this example:
http://qt-project.org/doc/qt-5/qtwidgets-itemviews-simpletreemodel-example.html

My internal model is correctly populated and I can manually output it to console to check that it works perfectly.

In the QML, I do something like:
@ ListView
{
id: sceneGraphView
anchors.fill: parent

model: sceneGraphModel
delegate: sceneNodeDelegate

}@

Unfortunately, I only get the first element of my model. Is this the correct way to populate a ListView?

Also, the model's methods called when I launch the application are:
@rowCount
roleNames
index
rowCount
columnCount
data @

Thanks for any help.

]]>https://forum.qt.io/topic/39254/solved-populate-a-qml-listview-with-a-custom-c-modelRSS for NodeSun, 25 Oct 2026 04:40:15 GMTThu, 20 Mar 2014 09:16:01 GMT60<![CDATA[Reply to [SOLVED] Populate a QML ListView with a custom C++ model on Fri, 21 Mar 2014 09:33:49 GMT]]>Ok, I see. Thanks a lot for your help!

]]>https://forum.qt.io/post/219360https://forum.qt.io/post/219360Fri, 21 Mar 2014 09:33:49 GMT<![CDATA[Reply to [SOLVED] Populate a QML ListView with a custom C++ model on Fri, 21 Mar 2014 04:49:50 GMT]]>Hi,

Currently there's no of Treeview for QML. But there are some work around's
For eg. See "this":http://qt-project.org/forums/viewthread/30521/#136940

]]>https://forum.qt.io/post/219332https://forum.qt.io/post/219332Fri, 21 Mar 2014 04:49:50 GMT<![CDATA[Reply to [SOLVED] Populate a QML ListView with a custom C++ model on Thu, 20 Mar 2014 16:42:37 GMT]]>Ok, it seems that the QML View I use is not appropriate for that. When testing with a QTreeView, it worked immediately. What QML view should I use then to display a Tree in QML? it seems that none are present for the moment.

Thanks for any help.

]]>https://forum.qt.io/post/219250https://forum.qt.io/post/219250Thu, 20 Mar 2014 16:42:37 GMT<![CDATA[Reply to [SOLVED] Populate a QML ListView with a custom C++ model on Thu, 20 Mar 2014 14:57:08 GMT]]>Thanks for your answer.

The model is already populated when the view access it the first time calling rowCount.

My main concern is about the C++ model members called from the QML ListView. I am not sure it is correct and sufficient.

Best regards.

]]>https://forum.qt.io/post/219238https://forum.qt.io/post/219238Thu, 20 Mar 2014 14:57:08 GMT<![CDATA[Reply to [SOLVED] Populate a QML ListView with a custom C++ model on Thu, 20 Mar 2014 09:31:57 GMT]]>Hi,

Are you calling "beginInsertRows":https://qt-project.org/doc/qt-5.1/qtcore/qabstractitemmodel.html#beginInsertRows and "endInsertRows":https://qt-project.org/doc/qt-5.1/qtcore/qabstractitemmodel.html#endInsertRows when populating the list ?
See "this":https://qt-project.org/doc/qt-5.1/qtquick/qtquick-modelviewsdata-cppmodels.html example for how to use C++ model in QML

]]>https://forum.qt.io/post/219187https://forum.qt.io/post/219187Thu, 20 Mar 2014 09:31:57 GMT