TreeGrid - LoadOnDemand

[NF]

Hello,
I am working with LoadOnDemand=="true" - "...By default, a newly loaded node will be considered to be a folder that has not loaded its children yet...."
I want to avoid this behavior.
I know what is the nature of my dataset, I know that each folder has only 1 level.
Meaning that I only need the first level records to be isFolder == true and the records I will retrieve from the server (on demand) to be isFolder == false.
In the following photo, you can see the current behavior that each child element is expandable (isFolder == true).
I also want to avoid traverse all children and mark them as - isFolder == false.

[Isomorphic]

We would recommend simply setting isFolder=false on your leaves when you return data from the server. If that's somehow onerous, two other options would be:
1. implement a transformResponse on the DataSource that manipulates the isFolder property
2. override the isFolder method on the auto-created ResultTree via treeGrid.dataProperties