I need a ObservableCollection of tree levels

i need to create a ObservableCollection<> for tree o more levels in c# like this:

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• Group 1
• Group 2
  • Group 1
  • Group 2
    • Group 1
    • Group 2
  • Group 3

thanks in advance,

Timmy Leonard

make a "node" class that contains an observable collection of child nodes, like this:

class node
{
// add some data properties in here, too

   public ObservableCollection<node> children;
}


// declare an instance, in the data model (or where-ever)
ObservableCollection<node> RootLevel = new ObservableCollection<node>();

I could probably give you a better answer if I knew what platform your trying to do this for. (WPF or Silverlight, etc)