GoBoxNode: The ToSide not spread after layouttree

GoDiagram (6 and previous)
1
I find a issue in my application.so i did test it in demo project by add same function.
I added a layout tree function for demoproject, code:
Private Sub MenuItem2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem2.Click
Dim Layout As GoLayoutTree = New GoLayoutTree
Layout.Path = GoLayoutTreePath.Source
Layout.Arrangement = GoLayoutTreeArrangement.Vertical
Layout.Angle = 270 ' down
Layout.Style = GoLayoutTreeStyle.Layered
Layout.Document = Me.myView.Document
Layout.SetsPortSpot = False
Layout.Document.StartTransaction()

Layout.PerformLayout()
Layout.Document.FinishTransaction("Tree Layout")

End Sub
----------------------------
I added 3 infonode2 and 6 twocolorlink , just as the code from sample :
Dim infon21 As InfoNode2 = New InfoNode2()
infon21.Initialize()
infon21.Text = "InfoNode21"
infon21.Position = New PointF(infon.Right + 50, comment.Bottom + 80)
doc.Add(infon21)
Dim infon22 As InfoNode2 = New InfoNode2()
infon22.Initialize()
infon22.Text = "InfoNode22"
infon22.Position = New PointF(infon.Right + 50, comment.Bottom + 120)
doc.Add(infon22)

Dim infon23 As InfoNode2 = New InfoNode2()
infon23.Initialize()
infon23.Text = "InfoNode23"
infon23.Position = New PointF(infon.Right + 50, comment.Bottom + 180)
doc.Add(infon23)

Dim tcl1 As TwoColorLink = New TwoColorLink()
tcl1.SecondColor = Color.Blue
tcl1.PenColor = Color.Red
tcl1.Width = 2
tcl1.FromPort = infon21.Port
tcl1.ToPort = infon22.Port
doc.Add(tcl1)

Dim tcl2 As TwoColorLink = New TwoColorLink()
tcl2.SecondColor = Color.Blue
tcl2.PenColor = Color.Red
tcl2.Width = 2
tcl2.FromPort = infon21.Port
tcl2.ToPort = infon22.Port
doc.Add(tcl2)
Dim tcl3 As TwoColorLink = New TwoColorLink()
tcl3.SecondColor = Color.Blue
tcl3.PenColor = Color.Red
tcl3.Width = 2
tcl3.FromPort = infon21.Port
tcl3.ToPort = infon22.Port
doc.Add(tcl3)
Dim tc2 As TwoColorLink = New TwoColorLink()
tc2.SecondColor = Color.Blue
tc2.PenColor = Color.Red
tc2.Width = 2
tc2.FromPort = infon22.Port
tc2.ToPort = infon23.Port
doc.Add(tc2)

Dim tc21 As TwoColorLink = New TwoColorLink()
tc21.SecondColor = Color.Blue
tc21.PenColor = Color.Red
tc21.Width = 2
tc21.FromPort = infon22.Port
tc21.ToPort = infon23.Port
doc.Add(tc21)
Dim tc22 As TwoColorLink = New TwoColorLink()
tc22.SecondColor = Color.Blue
tc22.PenColor = Color.Red
tc22.Width = 2
tc22.FromPort = infon22.Port
tc22.ToPort = infon23.Port
doc.Add(tc22)
Issue: Before Layout tree, it was good:
Then I click Layout tree : then there a issue in the view , the ToSides do not spread any more.
Jake, Could you please test it any give any response? Thanks a lot
2

You also need to set:

Layout.SetsChildPortSpot = False

3

Thank you , walter. You are right.

The diagram works perfectly now.