my behavior class like below:
public class EMModifyBehavior : ModifyBehavior
{
     ...
}
This class also handle the NodeModified event of Diagram.
What I want to do is when user drag and move a node to right,
I control the node move to left.

So I override OnMouseMove method of ModifyBehavior. There are
ways to do it.
Way1:
protected override void OnMouseMove(Point mousePosition)
{
     base.OnMouseMove(mousePosition);
     
     my code something here;
}
everything can be done well. but it is flickering. User can
see node move to right first then move back to left. It is very
bad how to stop to flicker?

Way2:
protected override void OnMouseMove(Point mousePosition)
{
     my code something here;
}
No flickering at all, very good. but NodeModified event is not fired.
So I lost chance to do something.

How to implement this feature perfectly?
Thanks a lot

Thanks。 it can work