public void ReplaceNode(Node node) {
if (Nodes.Contains(node)) {
Nodes.Remove(node);
Nodes.Add(node);
} else {
Nodes.Add(node);
}
// post changed event and changed filted nodes
Nodes = Nodes;
}
public void OnSelectedNodeChanged(SelectedNodeChangedEvent e) {
SelectedNode = e.node;
}
