// Set the strips visibility for the given tree node according to expandednessity
private void SetStripsVisibilityForNode(TreeNode node, bool visible)
{
mProjectView.SetStripVisibilityForSection((SectionNode)node.Tag, visible);
foreach (TreeNode n in node.Nodes)
{
SetStripsVisibilityForNode(n, visible && node.IsExpanded);
}
}