Question

Basically, I have a collection of Foos.

public class Foo
{
    public string Section { get; set; }
    public string SubSection { get; set; }

    public string item { get; set; }
}

I want my Foo’s to be grouped by Section, then by SubSection.

Section A
 Section A1
  - Item A1.0
  - Item A1.1
 Section A2
  - Item A2.0
  - Item A2.1
  - Item A2.2
Section B
... etc

Answer 1

Treeview could be a solution, or you could use a listview and provide your own style template which supports the display of your nested data through binding. Also see this SO question.