Hello,

I've got a very simple diagram and got the following exception:

System.ArgumentOutOfRangeException was unhandled
  Message="Index was out of range. Must be non-negative and less than the size of the collection.\r\nParameter name: index"
  Source="mscorlib"
  ParamName="index"
  StackTrace:
       at System.Collections.CollectionBase.System.Collections.IList.get_Item(Int32 index)
       at MindFusion.Diagramming.AnchorPointCollection.get_Item(Int32 index)
       at MindFusion.Diagramming.x13ba473cd1de406f.GetAnchorPos(Int32 anchorIdx)
       at MindFusion.Diagramming.DiagramLink.xb05f5d996d82647f(Anchoring x7ba664bd6885b404, Boolean x49743b78538984b7)
       at MindFusion.Diagramming.DiagramLink.xb05f5d996d82647f(Anchoring x7ba664bd6885b404)
       at MindFusion.Diagramming.DiagramLink.set_Style(LinkStyle value)
       at MindFusion.Diagramming.Layout.TreeLayout.UpdateLink(DiagramLink a, Boolean ignoredDirection)
       at MindFusion.Diagramming.Layout.TreeLayout.Arrange(Diagram diagram, DiagramItemCollection items)
       at AnimationSequencer.AnimationSequencer.ArrangeSubItems(TreeLayout layout, ContainerNode container) in C:\Perforce\f1\programming\tools\game\AnimationSequencer\AnimationSequencer.cs:line 1815
       at AnimationSequencer.AnimationSequencer.LayoutDiagram() in C:\Perforce\f1\programming\tools\game\AnimationSequencer\AnimationSequencer.cs:line 1851
       at AnimationSequencer.AnimationSequencer.toolStripButton1_Click(Object sender, EventArgs e) in C:\Perforce\f1\programming\tools\game\AnimationSequencer\AnimationSequencer.cs:line 2710
       at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
       at System.Windows.Forms.ToolStripButton.OnClick(EventArgs e)
       at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
       at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
       at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
       at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
       at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
       at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
       at System.Windows.Forms.ToolStrip.WndProc(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(Form mainForm)
       at AnimationSequencer.Program.Main() in C:\Perforce\f1\programming\tools\game\AnimationSequencer\Program.cs:line 17
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()

 

Ive got 4 table nodes each with 1 input anchor and between (0-2) output anchors.

eg

containernode
{

        tablenode1----> tablenode2 ------->tablenode3
                                   |
                                   ---->tablenode4
}
 

table node 1 is the rootnode.

I'll send my diagram to you, but the long and short of it is that the link between tablenode1 and tablenode2, is causing this exception.

I put a try catch arround the arrange function that was generating the exception. The resultant diagram after not crashing crashing shows that the link between tablenode1 and tablenode2 had lost its destination anchoring and was now anchored to the container node.

as a work around I found by doing the following code snippet I can fix the diagram and handle the exception correctly.

try
{
    layout.Arrange(m_diagram, childItems);
}
catch
{
    foreach (DiagramLink link in m_diagram.Links)
    {
        link.ReassignAnchorPoints();
    }
    m_diagram.RouteAllLinks();
}
 

Okay I've sent you another email with more details and code in it.

I'm programmatically hooking up the links, i suspect its a problem with the following lines of code somewhere.

I have a custom data format which I load the graph from, I load all the nodes and container nodes then I hook the links up after all the nodes are created.

because I need to use multiple rows and anchor points its very important that the correct anchor point is used for a links exit point where as there is only ever one entry point.

PinnedNode sourceNode = this;
PinnedNode targetNode = pinnedNode;
this.Parent.Factory.CreateDiagramLink(sourceNode, m_links.IndexOf(link) + 1, targetNode);
 

the above code is what is being used to create the links in the diagram that is causing the crash.

I've basically left it up to the diagram to sort out the anchor point as I'm forcing all links to anchor them self to the anchorpoint only. And since there is only one input anchor. I've not specifically told it which anchor to use.