Tree Problem

[customaware]

I have a BO called CodeRef that I would like to display as a tree.

CODE Number
DESCRIPTION Text
Child CodeRef

I can get this working with one exception.

I need to Display the CODE and the DESCRIPTION

However, instead of it displaying the CODE in a hierarchy fashion in the first Column it displays all the CODE directly under each other.

Nodes open and close as expected but cannot distinguish between parents and children.

However, if I change the CODE type to Text (which is not preferable) then it works as one would expect.

Does this mean the Tree only works properly with Text values and not with numbers or am I missing something.

Any advice would be appreciated.

Cheers,
Mark