I have few nodes and connecting links. Now I add another node in shape of ellipse which covers 3 nodes and connecting 3 links. Ellipse node is on top. Now I send it to back by setting ZBottom(). So the 3 nodes and links comes to front. When I try to select any of the nodes, I am able to do so while if I want to select the 3 connecting links I am unable to do. Instead the sllipse node gets selected. Seems the link remains to ZBottom. I even tried to first set all the links in the diagram to ZTop() and then set the selected ellipse node to ZBottom() but still it does not work.
Below is the code:

public void SendToBack()
{
foreach (DiagramLink item in _diagram.Links)
item.ZTop();

foreach (var node in _diagram.Selection.Nodes.OfType<IOrderable>())
{
node.ZBottom();

foreach (DiagramLink link in (node as DiagramNode).GetAllLinks())
link.ZBottom();
}
}

In the image attached, I try to select link connecting 'cost of living' and 'FT' but ellipse node gets selected.

Any Help ? Thanks in advance

wow..thanks..it works