Hi Stoyan

I see that one of the overlaods on the Arrange method on the tree layout type allows for a collection of items to be supplied. I'm trying to apply a tree layouts to groupings of about 10 nodes of a larger diagam in order to preserve certain presentation requirements - applying a tree to the whole diagram works as expected, but when supplying an ItemCollection it seems to have no effect. Is what I'm attempting possible with the layout functionality?


Many thanks


Paul

Hi Stoyan

Thanks for thr tip - i tried this but there still seems to be no effect.

In my control contsructor i have ther following code to set up the tree layout:

       With mTreeLayout
           .Type = Layout.TreeLayoutType.Cascading
           .Direction = Layout.TreeLayoutDirection.LeftToRight
           .LinkStyle = Layout.TreeLayoutLinkType.Cascading2
           .LevelDistance = 150

           .KeepRootPosition = True
       End With


The layout is applied after the nodes have been added to the diagram, with the following code:
Dim oItems As New MindFusion.Diagramming.Wpf.DiagramItemCollection

     
           Dim oLayoutRoot As ShapeNode = DirectCast(oSfeFlow.FindNode(pRootTag), ShapeNode)
           oItems.Add(oLayoutRoot)

           For Each oNode As DiagramNode In oLayoutRoot.MasterGroup.AttachedNodes
               oItems.Add(oNode)
               oItems.Add(oNode.IncomingLinks(0))
           Next
            mTreeLayout.Root = oLayoutRoot
           mTreeLayout.Arrange(oSfeFlow, oItems)
      
During node creation i set the item bounds to 0,0,200,200 as the location should be getting applied when the layout comes into effect. 

Going on the above, is there something I'm doing wrong?


Many thanks


Paul

Hi Stoyan

The links radiate from the proposed layout root (shapenode) so iI don't need the reversed links  option.  my constructor for th elayout obect is as follows:

Private mTreeLayout As New Mindfusion.Diagramming.Wpf.TreeLayout

though i will try setting the keepGroupLayout to false manually, just to be sure.