Hi Stoyan,

I have set link style to custom at the time of creation and in DrawAdjustmentHandles handler I am changing its style to SquareHandle. It is working fine for first time but once it passes through the DrawAdjustmentHandles handler link style gets changed to SquareHandle.
My question is where I can reset link's style to custom?

The code which I have written inside DrawAdjustmentHandles  is given below.

if (e.Item is DiagramLink && e.Item.Selected)
			  {
				DiagramLink link = e.Item as DiagramLink;
				link.HandlesStyle = HandlesStyle.SquareHandles;
			  } 

Regards,
Anshul

Hi,

I suppose you are setting HandlesStyle = SquareHandles in order to make the link's DrawHandles method render the handles. So after calling e.Link.DrawHandles(), set link.HandlesStyle = Custom again.

Alternatively, you could simply loop over the link's ControlPoints and draw some rectangles around them:

void diagram_DrawAdjustmentHandles(object sender, DrawItemEventArgs e)
{
	var link = e.Item as DiagramLink;
	if (link != null && link.Selected)
	{
		foreach (Point p in link.ControlPoints)
			DrawRect(e.Graphics, p, diagram.AdjustmentHandlesSize);
	}
}

private void DrawRect(DrawingContext dc, Point center, double size)
{
	dc.DrawRectangle(Brushes.White, new Pen(Brushes.Black, 1), new Rect(
		center.X - size / 2, center.Y - size / 2, size, size));
}
 

I hope that helps,
Stoyan

Hi Stoyan,

Try the Diagram.CancelDrag method from this version:
https://www.mindfusion.eu/_beta/wpfdiag_canceldrag.zip

I want to know, to fix this issue when we can get next licensed build of MindFusion.Diagramming.Wpf ?


Regards,
Anshul