Hello.

I'm trying to implement next behaviour: when diagram node is moving i need to detect intersection with other nodes and highlight "bottom" nodes which has been intersected.

I'm trying to solve this by adding some kind of flag in node and set it in DiagramNodeModifying event after detecting intersection. But to take new state into account I must repaint the node on every tick of DiagramNodeModifying event. This repaint is source of  significant flickering of bottom nodes.

Is there's a way to avoid frequent repaint or other way to implement my task. I can send you my sample code if required.

Thanks in advance.

RecreateCacheImage really helps. Thank you very much!