Windows Phone 中尋找視覺化樹狀結構中的某個類型的元素

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    private void StackPanel_Tap(object sender, TappedRoutedEventArgs e)    {         //擷取到的對象是ListBoxItem         ListBoxItem myListBoxItem =  (ListBoxItem)(listbox.ItemContainerGenerator.ContainerFromItem((sender as Panel).DataContext));         // 在ListBoxItem中尋找ContentPresenter         ContentPresenter myContentPresenter = FindVisualChild<ContentPresenter>(myListBoxItem);        ……//省略若干代碼    }    //尋找視覺化樹狀結構某個類型的元素    private childItem FindVisualChild<childItem>(DependencyObject obj) where childItem : DependencyObject    {        for (int i = 0; i < VisualTreeHelper.GetChildrenCount(obj); i++)        {            DependencyObject child = VisualTreeHelper.GetChild(obj, i);            if (child != null && child is childItem)                return (childItem)child;            else            {                childItem childOfChild = FindVisualChild<childItem>(child);                if (childOfChild != null)                    return childOfChild;            }        }        return null;    }

Windows Phone 中尋找視覺化樹狀結構中的某個類型的元素