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robo
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Layout management question
Apr 24th, 2009 at 2:16am
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Hi,

I've just started evaluating NetDiagram. So far I've only briefly reviewed the documentation and the class reference, but I would like to ask a question about layout management.

I want to create a diagram that contains nested ContainerNodes. Some ContainerNodes may contain one or more additional nested ContainerNodes, and some may contain ordinary nodes.

I would like to be able to control the layout management of each ContainerNode separately. For example, I may want some container nodes to lay out their contents in a horizontal flow layout, and other nodes in a vertical flow layout. Others I may want to use something other than the flow layout manager.

Is it possible to lay out individual ContainerNodes differently? I noticed that there is a LayoutTraits property in the DiagramItem class. Is that part of the mechanism for supporting this kind of layout management? How might this be accomplished?

Thanks!
Rob
  
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Stoyo
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Re: Layout management question
Reply #1 - Apr 24th, 2009 at 8:00am
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Hi Rob,

You could use the Arrange(DiagramItemCollection) method to arrange just the items inside a container:

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DiagramItemCollection childItems = new DiagramItemCollection();
foreach (DiagramNode childNode in container.SubordinateGroup.AttachedNodes)
{
	childItems.Add(childNode);
	foreach (DiagramLink link in childNode.OutgoingLinks)
		childItems.Add(link);
}
layout.Arrange(diagram, childItems);


It might be a good idea to call ContainerNode.UpdateBounds after Arrange.

I hope that helps,
Stoyan
  
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