We have a requirement that I am in the process of investigating, where we need to be able to lock a nested column, i.e. a sub-grid column, which is part of a column group.
We already use the lockedColumnCount property to lock/unlock the top-level columns of a grid. My initial take is that ADG does not have this support as it as lockedColumnCount property seems to track the locked columns for only the top-most columns.
I am not sure if there is a way this can be implemented or if someone has come across this.