I have created a simple diagram with a start node, container node, and end node. When I add children to the container node and apply a TreeLayout, the children are not arranged. I have also tried adding the children to a DiagramItemsCollection and applying the layout to those. This results in the children being pulled out of the container completely. How do I perform the layout of the children in the container? Here is the code I have tried:

ShapeNode n1 = dgmWorkflow.Factory.CreateShapeNode(0, 0, 30, 30, MindFusion.Diagramming.Silverlight.Shapes.Start);
ContainerNode n2 = dgmWorkflow.Factory.CreateContainerNode(0, 0, 150, 150);
ShapeNode n2_1 = dgmWorkflow.Factory.CreateShapeNode(0, 0, 30, 30, MindFusion.Diagramming.Silverlight.Shapes.Arrow1);
ShapeNode n2_2 = dgmWorkflow.Factory.CreateShapeNode(0, 0, 30, 30, MindFusion.Diagramming.Silverlight.Shapes.Arrow2);
ShapeNode n3 = dgmWorkflow.Factory.CreateShapeNode(0, 0, 30, 30, MindFusion.Diagramming.Silverlight.Shapes.Terminator);

n2.Children.Add(n2_1);
n2.Children.Add(n2_2);

dgmWorkflow.Factory.CreateDiagramLink(n1, n2);
dgmWorkflow.Factory.CreateDiagramLink(n2, n3);
dgmWorkflow.Factory.CreateDiagramLink(n2_1, n2_2);

var layout = new MindFusion.Diagramming.Silverlight.Layout.TreeLayout();
layout.Direction = MindFusion.Diagramming.Silverlight.Layout.TreeLayoutDirection.TopToBottom;
layout.LinkStyle = MindFusion.Diagramming.Silverlight.Layout.TreeLayoutLinkType.Cascading3;
layout.Arrange(dgmWorkflow);

DiagramItemCollection items = new DiagramItemCollection();
items.Add(n2_1);
items.Add(n2_2);
layout.Arrange(dgmWorkflow, items);

Thanks for the example.  This definitely works to layout all of the nested containers and nodes.  However, when I switch the tree layout link type from straight to cascading3, then the links into the containers become all messed up after arranging.