Refresh a form.

Hello, I just joined a company and they use ARAS. I'm learning everything about the program as I go along.

I have a problem, I have looked in the forum, but no option solves the problem.

I have a form in which I update a field through an action, but I can't get it to refresh the screen and update the changed value. I've tried refreshing and blocking the item by hand, but nothing, no way.

I try with:

parent.onRefresh();

And with:

this.lockItem();
this.unlockItem();

But nothing. Any ideas?

Thank you very much.