How to Insert/Update/Remove in a C++ TreeModel and a QML View

Fheanor

Hello,

I need for my QML UI to use a TreeView.
I based my TreeViewModel from this example

I use custom Data and they are displayed correctly. However, I have trouble to understand how I could update the view when I need for example to insert a new Data.

When using for example a QAbstractListModel, I will use functions like beginInsertRows() etc.
It is easy to find the index because you have a QList of Data.
However, in a TreeModel, the only Data you have is the root of the TreeItem.

So I don't know what index to give to beginInsertRows() if I want to insert (or update or remove) a Node.
Could someone explain it to me ?

I don't know if my explanation was clear, my english is not perfect. If you have trouble to understand my question, just tell me and I will try to make it more clear.

Thanks a lot and have a good day !

Ray Gray

Check Editable Tree Model Example.
Item delegate has styleData.index special property that holds QModelIndex.

Fheanor

Thanks a lot !