Gtk# iterate a specific node of a TreeStore, not the root

The code below gives me Node1 Node2 Node3, when I expected Node21 Node22. What is wrong? In case you know GTK but not GTK# nor C#, here are the signatures of the methods I used. params means variable arguments, out means that the parameter is used as an output, ref` means pass by reference. public… Read More Gtk# iterate a specific node of a TreeStore, not the root