How to Scroll the UIScrollBar component to the top?

I'm using the UIScrollBar with a dynamic text field. If
content gets scroll by the user, and then the text fiel dis update
with new text, the new text remains "pre-scrolled". So, obviously,
I want to set the scroll position to 0 every time I update the
content in that field. But how do you do this?
Is this something I do to the text field or to the
UIScrollBar component?
What is the method?
Could somebody please give me an example?
Thanks in advance...

Silly me, I think I walked past this one several times
thinking I had tried it.
// To scroll the UIScrollBar to the top
info_txt.scrollV = 1;
My problem was that I was using the parantheses to pass the
value, like this:
// This doesn't work
info_txt.scrollV(1);

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