void UpdateNode(TreeNode tn, NsNode node)
{
tn.Tag = node;
tn.Text = node.Label;
TreeNode atr;
//add or update attribute nodes
foreach (IAttribute attr in node.Attributes)
{
atr = GetChildNode(attr, tn);
if (atr != null) //attribute found, update value
UpdateAttribute(atr, attr);
else //attribute not found, add new
{
atr = new TreeNode();
UpdateAttribute(atr, attr);
tn.Nodes.Add(atr);
}
}
//add or update subnodes
foreach (NsNode n in node)
{
atr = GetChildNode(n, tn);
if (atr != null)
UpdateNode(atr, n);
else
{
atr = new TreeNode();
UpdateNode(atr, n);
tn.Nodes.Add(atr);
}
}
//remove deleted nodes
foreach (TreeNode t in tn.Nodes)
{
if (!node.HasChild(t.Tag))
t.Remove();
}
}