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Get bounding rectangle of a listbox item

Posted By:      Posted Date: August 31, 2010    Points: 0   Category :WPF
Hi everyone, I can add a String or a ListBoxItem into Listbox. When item of Listbox is a ListBoxItem , I can get ListBoxItem 's rectangle by calling "ListBoxItem.PointToScreen(point)". But I can not get rectangle of an item if this item is a String . Any help would be appreciated!

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