Hi,

You must save and restore the points in the ControlPoints collection, along with the SegmentCount value. DiagramLink.Bounds a dynamically calculated property that returns the rectangle that contains all these points.

Stoyan

Hi,

Are you using link auto-routing? The SegmentCount setter might ignore the value you try to assign to it if AutoRoute is enabled. You might check this thread for some tips on how to restore the points of auto-routed links when implementing custom serialization:
http://mindfusion.eu/Forum/YaBB.pl?board=wpfdg_disc;action=display;num=123661683...

I hope that helps,
Stoyan

Ok. I am still having problems loading from the control points, so I have created an example from my database values. Below is my code:
aspx:

<form id="form1" runat="server">
       <asp:ScriptManager ID="ScriptManager1" runat="server" />
       <div>
           <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
               <ContentTemplate>
                   <table style="table-layout:fixed;">
                       <tr>
                           <td>
                               <ndiag:DiagramView ID="diagView" AutoScroll="true" runat="server" Height="480px" Width="780px" ClientSideMode="ImageMap">
                                   <Diagram AllowSelfLoops="false" AutoResize="RightAndDown" />
                               </ndiag:DiagramView>
                           </td>
                           <td style="vertical-align:top;">
                               <ndiag:Overview ID="ovw" runat="server" DiagramViewID="diagView" Style="left: 680px; width: 120px;
                               top: 320px; height: 160px; display:inline;" />
                           </td>
                       </tr>
                   </table>
                   <ndiag:InteractivityExtender ID="InteractivityExtender1" TargetControlID="diagView" runat="server" />
                   <ndiag:OverviewExtender ID="ovrExt" TargetControlID="ovw" runat="server" />
               </ContentTemplate>
           </asp:UpdatePanel>
      </div>
    </form>




and the aspx.vb:


Private Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
       If Not IsPostBack Then
           diagView.Diagram.DefaultShape = Shapes.Rectangle
           Dim oSNode As DiagramNode
           Dim oDNode As DiagramNode
           oSNode = diagView.Diagram.Factory.CreateShapeNode(0, 25, 25, 10)
           oDNode = diagView.Diagram.Factory.CreateShapeNode(88.10624, 28.83958, 25.00001, 10.0)

           Dim oLink As DiagramLink
           oLink = diagView.Diagram.Factory.CreateDiagramLink(oSNode, oDNode)
           'oLink = New DiagramLink(diagView.Diagram)

           oLink.ControlPoints.Clear()
           oLink.ControlPoints.Add(New System.Drawing.PointF(100.6062, 28.83958))
           oLink.ControlPoints.Add(New System.Drawing.PointF(12.5, 63.4052))
           oLink.ControlPoints.Add(New System.Drawing.PointF(12.5, 35.0))
           oLink.ControlPoints.Add(New System.Drawing.PointF(100.6062, 63.4052))

           oLink.Origin = oSNode
           oLink.Destination = oDNode
           oLink.SegmentCount = 3
           'diagView.Diagram.Links.Add(oLink)
           oLink.Style = LinkStyle.Cascading
       End If
    End Sub



When it renders it looks nothing like the defined control points. When I comment out setting the style, it still does not look like the control points definition. Any help getting these control points to take would be greatly appreciated.
Thanks,
jay

The points should be added in the same order as the link segments should follow from the start to end point. E.g. this works better:

oLink.ControlPoints.Add(New System.Drawing.PointF(100.6062, 28.83958))
oLink.ControlPoints.Add(New System.Drawing.PointF(100.6062, 63.4052))
oLink.ControlPoints.Add(New System.Drawing.PointF(12.5, 63.4052))
oLink.ControlPoints.Add(New System.Drawing.PointF(12.5, 35.0))

Check if your database query returns the points in the order you have added them.

I hope that helps,
Stoyan