Problems in the visible appearance of elelment

I set the Visible property false of NODE,the NODE have a link,
now the NODE and link is hidden;
how to hidden NODE and display link in connected status

So you have a Node that has one or more Links connecting with it. Are you saying that when you set Node.visible false you want to continue seeing the connected Links, even though they will now appear as if they are “dangling” in mid-air?

Yes, I hope so

I do not think it is possible to modify that visibility policy when setting Node.visible to false.

However, instead of setting visible to false, try setting opacity to 0.0.