Hi,

I am using MindFusion.Diagramming.Wpf version 2.5.2.32851

I have following requirement. Please let know whether it can be achieved.
Please refer to attachments for more pictographic view .

     1. When Node A is double clicked, some new set of node will appear in the diagram. Need to preserve all other existing node
     2. REQ 1: Node A to become invisible  and the new set of nodes to be visible within some boundary  where links can be placed across boundaries (ref Img 2)
     3. REQ 2: Zooming can be applied to that specific boundary area only. (ref Img 2)
     4. REQ 3: A title bar to appear with the boundary and also we can minimize the boundary and the original node should appear again (as in Img1)
     
We are already using the expander node being provided with Diagramming nodes for some other purpose.

Please let know how can above be achieved.
A sample will be very helpful if possible.


Thanks,

Bala

Hi Stoyo,

Thanks for your inputs.
Couple of more queries regarding the suggested thing.

     1. During startup, if I add some nodes to the container node and then set the Folded=False, the container node do not appear Folded.
      [Need all container nodes folded initially]

     2. On node double click when Folded property is toggled then it do not raise ContainerFolded or ContainerUnfolded
      Do we need to call them explicitly?

     3. How can the shape of Container Node be templated in Folded State.
     4. Can we zoom nodes in a particular rectangle area only?


Thanks,
Bala

Hi Stoyo,

I understand that zooming in the way we want wouldn't be possible and we will have to think of alternate approach.

Can we achieve following functionality:

1. Lets say we have some nodes which are not child of containernode and located outside the containernode (as shown in attached image). When user resizes the container node (say to add more child nodes) the nodes which are outside container should relatively position themselves accordingly and should not overlap or go behind containernode.

2. Nodes which are not child of containernode should not be allowed to drag within the boundary of containernode

3. Containernode should have restriction on size in such a way that user will not be able to shrink the containernode to a size where its child nodes are not contained whitin the containerndoe boundary.

Your help in this regard will be higly appreciated.

Thanks,
Bala

2. Cancel the drag operation from NodeModifying handler:

private void OnNodeModifying(object sender, NodeValidationEventArgs e)
{
	var nodes = diagram.GetNodesAt(e.MousePosition);
	foreach (DiagramNode node in nodes)
	{
		var ctr = node as ContainerNode;
		if (ctr != null && !ctr.ContainsRecursively(e.Node))
			e.Cancel = true;
	}
} 

I hope that helps,
Stoyan

Thanks Stoyan! Your response was helpful.