I have a diagram that has LinkStyle=Cascading and LinkSegments=3. I want to add a new controlpoint in a middle of an existing link segment programmatically, so i do:

link.ControlPoints.Insert(new PointF(x,y));
link.UpdateFromPoints(true);
link.UpdateIntersections();

What i get is that point is added but i miss last segment visually (link exists, but it appears unconnected).
If i click link handles i get weird behavior.

Did i miss something?

Thanks

Hi Stoyo,
I don't have such overload (using v5.1.1.23993) do i need to upgrade or do you have a (temporary) workaround?

Thanks

Hi Stoyo,
Tried this but problem is the same...

    public void AddLinkSegment(DiagramLink link, PointF splitPoint)
    {
     PointCollection savedPoints = link.ControlPoints.Clone();
     link.SegmentCount++;
     //Find segment
     for (int i = 1; i < savedPoints.Count; i++)
     {
       PointF linkPoint = link.ControlPoints[i];
       bool isSameY = splitPoint.Y > linkPoint.Y - 2 && splitPoint.Y < linkPoint.Y + 2;
       bool isSameX = splitPoint.X > linkPoint.X - 2 && splitPoint.X < linkPoint.X + 2;
       if (isSameY && linkPoint.X > splitPoint.X)
       {
         //Inject splitpoint
         savedPoints.Insert(i, new PointF(splitPoint.X, linkPoint.Y));
         break;
       }

       if (isSameX && linkPoint.Y > splitPoint.Y)
       {
         //Inject splitpoint
         savedPoints.Insert(i, new PointF(linkPoint.X, splitPoint.Y));
         break;
       }
     }
     for (int i = 0; i < savedPoints.Count; i++)
     {
       if (i < link.ControlPoints.Count)
         link.ControlPoints[i] = savedPoints[i];
       else
         link.ControlPoints.Add(savedPoints[i]);
     }
     link.UpdateFromPoints(true);
     link.UpdateIntersections();
    }

Method just adds a new point to provided link.
Thanks

Sorry but I'm getting lost...
You mean that i have to add the same point twice? (method adds just a single point) i did that (see code below) but i don't understand how to modify second loop.

   public void AddLinkSegment(DiagramLink link, PointF splitPoint)
    {
     int insertionPoint=0;
     PointCollection savedPoints = link.ControlPoints.Clone();
     link.SegmentCount++;
     //Find segment
     for (int i = 1; i < savedPoints.Count; i++)
     {
       PointF linkPoint = link.ControlPoints[i];
       bool isSameY = splitPoint.Y > linkPoint.Y - 2 && splitPoint.Y < linkPoint.Y + 2;
       bool isSameX = splitPoint.X > linkPoint.X - 2 && splitPoint.X < linkPoint.X + 2;
       if (isSameY && linkPoint.X > splitPoint.X)
       {
         //Inject splitpoint
         savedPoints.Insert(i, new PointF(splitPoint.X, linkPoint.Y));
         savedPoints.Insert(i, new PointF(splitPoint.X, linkPoint.Y));
         insertionPoint = i;
         break;
       }

       if (isSameX && linkPoint.Y > splitPoint.Y)
       {
         //Inject splitpoint
         savedPoints.Insert(i, new PointF(linkPoint.X, splitPoint.Y));
         savedPoints.Insert(i, new PointF(linkPoint.X, splitPoint.Y));
         insertionPoint = i;
         break;
       }
     }
     for (int i = 0; i < savedPoints.Count; i++)
     {
       if (i < link.ControlPoints.Count)
         if (i < insertionPoint)
           link.ControlPoints[i] = savedPoints[i];
         else
           link.ControlPoints.Add(savedPoints[i]);
     }

     link.UpdateFromPoints(true);
     link.UpdateIntersections();
    }

Thanks for your patience...

Hi Stoyo,
Copied you code "as-is" but unfortunately it generates a "Index of of range exception" inside the loop:

link.SegmentCount += 2;

for (int i = 0; i < savedPoints.Count; i++)

{

link.ControlPoints[i] = savedPoints[i];

}
That's because savedpoints.count=6 while link.ControlPoints.Count=4.
Looks like SegmentCount is ignored, code is exactly what you've posted before.

Thanks

Looks like your code works when Link.AutoRoute=false... 

Thanks