I have bound my tree to BindingList<OrgUnit>. The only one OrgUnit-object in the binding list is the root of a composite pattern, it's represnting my client object of the organisation. The client object has some properties like 'Name' and also a property 'Childs'. The childs are the child organisation object. Child objects can also have childs etc.

All my business objects implemets the INotifyPropertyChanged interface.

If the tree comes up, all nodes looks fine. My problem now is how update the tree if my business object changes (new child, name of child changes, .....).

Changing the 'Name' property, only changes to the root node are reflected in the tree. I guess this is because the root is the only one object in my binding list.

Do I need some refactoring of my business objects in a way that the 'Childs' property also is a binding list?

Do you have a sample project of such a scenario?

Thank you. Markus