Question Immediate ScrollTo on ScrollView not working for Runtime

Hi,

I need a ScrollView to scroll to a certain element immediately after it was created
and added to the panel.

When I try this in OnEnable or in a callback for the AttachToPanelEvent this doesn't work.

Code (CSharp):

1. private void OnEnable()
2. {
3.     UIDocument ui = GetComponent<UIDocument>();
4.     VisualElement root = ui.rootVisualElement;
5.  
6.     ScrollView myScrollView = new ScrollView();
7.  
8.     // ... imagine some added Elements to the ScrollView
9.  
10.     root.Add(myScrollView);
11.     myScrollView.ScrollTo(someElem);
12.  
13.     // nothing happens
14. }

When I try this later (for example on some Input.GetKeyDown test) the scrolling works as expected.

So why is this not happening immediately and how can I detect that my ScrollView is 'ready' to
use the ScrollTo() function?

 

sorry, wrong category. I reposted this in the UIToolkit forum but apparently, I can not delete it here.