Hello.
I have GridViewTree with three columns: id, number and subject.
The 'Id' column is not visible, but I want to set it to be FullPathDataColumn.
Is it posible to set FullPathDataColumn to not visible 'Id' column and show hierarchical tree (with plus and minus buttons) in 'Number' column (or in another column without data)?
example:

Please help me to solve this problem.
Thanks,
Lukasz