How to scroll the selected item in the list in the phone window 7

Question

I want to scroll the selected item in the list box. To do this, I now use one line of code in the event Listbox1_SelectionChanged, but scrolling does not work. I tried the same thing with the push of a button, which works fine.

Listbox1.ScrollIntoView(Listbox1.Items[Listbox1.SelectedIndex]);

Answer 1

I used solutions in my first updated interface, and the called ScrollIntoView works fine:

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Listbox1.UpdateLayout();
Listbox1.ScrollIntoView(Listbox1.Items[Listbox1.SelectedIndex]);