public TreeViewHandler()
{
tree = new Gtk.TreeView();
UpdateModel();
tree.HeadersVisible = false;
var col = new Gtk.TreeViewColumn();
var pbcell = new Gtk.CellRendererPixbuf();
col.PackStart(pbcell, false);
col.SetAttributes(pbcell, "pixbuf", 1);
textCell = new Gtk.CellRendererText();
col.PackStart(textCell, true);
col.SetAttributes(textCell, "text", 0);
tree.AppendColumn(col);
tree.ShowExpanders = true;
Control = new Gtk.ScrolledWindow();
Control.ShadowType = Gtk.ShadowType.In;
Control.Add(tree);
tree.Events |= Gdk.EventMask.ButtonPressMask;
tree.ButtonPressEvent += HandleTreeButtonPressEvent;
}
