I have a part of my system that is crying out for a tree structure, but
has been on the back burner for some time. All the rest of the stuff is
now in babysit mode while the little niggles are cleared, so it is time
to look at it.

The problem seems to me how to control the tree.

My database has every piece of equipment attached to the system, and a
field that identifies the level above, so that the tree starts with
sites, computers on the sites, displays attached to the computers ( it
gets more complex! ). At present I just filter levels, but it would be
nice to do the Device Manager display where the tree structure is shown
leading to the device that has just reported a fault.

Anybody got any suggestions on what they need to include to make this
work. My current starting point is two fields in the database, TAG and
SOURCE, TAG is an integer primary key, and SOURCE identifies the level
above. I have a convention on numbering, but only because it makes it
easy to identify a fault because I have not got the tree view.

I may be way of the mark for what other people want, but if we can come
up with a common starting point we can eliminate lots of duplicate work,
and start to make IBObjects dance.

Lester Caine
L.S.Caine Electronic Services