如何获得listboxitem？

Question

I have a ListBox . If I use listBox.Items[0] I get this item datacontent, but I want to get this item's height.

How to get this information?

Thx a lot!

Answer 1

You can use a VisualTreeHelper class You can find an example here . So, if you need just first element - use it in this way:

        var item = FindFirstElementInVisualTree<ListBoxItem>(listBox);
        var height = item != null ? item.ActualHeight : 0.0;

If you need to check not only the first one, feel free to modify that method or write you own.