Hi all,

I'm trying to create an instance of NTreeLayout as follows

Dim treeLayout As New NTreeLayout(document)

Dim treeLayout As New NTreeLayout(document)

but I'm getting this error

'New' cannot be used on a class that is declared 'MustInherit'

now then, looking at the user guide, it should be possible to create an instance that way...
What I'm doing wrong?

User Guide - Tree Layout

Thank you all for your responses.