private void ShowAutoConnectToggle(TreeViewColumn column, CellRenderer cell, TreeModel model, TreeIter iter) { CellRendererToggle toggleCell = (CellRendererToggle) cell; if (((TreeStore)model).IterDepth (iter) > 0) { TrustedNodeInfo node = (TrustedNodeInfo) model.GetValue (iter, 0); toggleCell.Active = node.AllowAutoConnect; toggleCell.Activatable = true; toggleCell.Visible = true; } else { toggleCell.Visible = false; } }