void HandleNodeAdded(IViewableCollection <INode2> collection, INode2 node)
{
if (!FChildNodes.Any((n) => n.FNode == node))
{
var nodeView = CreateNodeView(node);
if (nodeView.IsIncludedInFilter())
{
FChildNodes.BeginUpdate();
AddNodeView(nodeView);
FChildNodes.EndUpdate();
}
else
{
nodeView.Dispose();
}
}
}
