Changing attribute outside of a transuction

GoJS
1

I have an application using gojs,
there are some operations that I do not want to be part of the undo/redo mechanism.
for example I want to highlight nodes that have validation errors, And I do not want the highlighting to be part of the undo/redo because this is not an operation the user is doing.

is this possible?

2

The idea is to temporarily set Diagram.skipsUndoManager to true.

If all of the changes should not be recorded by the UndoManager, it’s easiest to call Diagram.commit with a second argument that is null.

3

I tried to scroll to the highlighted node,

this.diagram.commit(() => {
             this.diagram.clearHighlighteds();
               part.isHighlighted = true
           }, null);
this.diagram.commandHandler.scrollToPart(part)

but with there was no animation.
I then changed the second line to be like this

setTimeout(() => this.diagram.commandHandler.scrollToPart(part),200);

and than I see the animation.

why should I wait so long?
where am I wrong?

4

I think we’ll improve this in version 2.1. Announcing GoJS 2.1 Alpha Release