Hi Jie Liang,
Thanks for pointing this out, it looks like what I posted will not work for ListBox.
As a work around, you can try:
ListBox b = app.Find.ByType<ListBox>();
IList<ListBoxItem> l = b.Find.AllByType<ListBoxItem>();
Items does seem a little strange in what it returns with respect to ListBox, so I'll try to find out what the collection is for.
the Telerik team
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