Marie

I knew there was interest in that question. Finally I've redesign everything. What I haven't told is that my tree was supposed to represent rows in a postgres table. Each row has a foreign key pointing to the same table to represent its father (except for root). At first I wanted to load the whole tree, make the change on it and applied it to the database so if you wanted to cancel something in the process, the change would not have been made in the DB. Instead I decided to use the database properties like a transaction and delete on cascade. If the user decide to cancel everything, I rollback and no changes are made in the DB and if he decide to save, the commit is made. Also easy when you want to delete a subtree, you just have to delete its root and on cascade, everything pointing to it will be deleted. No recursive functions except for loading the tree. Eventually, if i have time, I could implement the Command pattern to have a undo/redo, but at the moment it's just a nice to have. Now I see the use of my software conception class and that all the time spent on my class diagram is not lost.

Thanks, I understand a little better now. But it's still way too complicated for what I want to do! It's not a binary tree, for sure my tree will never hold 1000 elements (and probably not even a 100!), and if I delete a node, its subtree is also deleted.

Yeah that's what I was looking for. I just don't understand what is the type of the children in the TreeNode class.

To represent a tree. I was trying to keep thing simple with the fact that the object keep a list of its own children.

Hi, I would like to know if a class can have an array of objects from the same class. For example if I have a class Human, can it holds an array of its children (they are humans too) ? C++ equivalent: class Human{ private : list<Human> children; } I've tried it and it gives me the "Private data control of this class uses an illegal value for its default data ..." error. Is there a way around that or do I have to use inheritance or the composite pattern? Thanks

In the end I'll run a macro to create a table with the checkboxes values and read the value in that table. Thanks anyway

Hi all, I'm really really really new to LabVIEW and would like to know how to read the value of a checkbox in a xlsm file. I have no problem with opening/reading/writting in a xlsx file. Any idea what would be the best solution? Thanks in advance