从ListBox.DataTemplate中的标签获取内容

private void GetContentFromDataTemplate(ListBox listBox, int index)
{
    ListBoxItem item = (ListBoxItem)listBox.ItemContainerGenerator.ContainerFromIndex(index);
    ContentPresenter contentPresenter = FindVisualChild<ContentPresenter>(item);
    DataTemplate dataTemplate = contentPresenter.ContentTemplate;

    // 获取TextBlock标签的内容
    TextBlock textBlock = (TextBlock)dataTemplate.FindName("TextBlockName", contentPresenter);
    string text = textBlock.Text;

    // 获取Image标签的内容
    Image image = (Image)dataTemplate.FindName("ImageName", contentPresenter);
    string imagePath = image.Source.ToString();

    // 其他标签的获取方式类似

    // 处理获取到的内容
    // ...
}

private static T FindVisualChild<T>(DependencyObject parent) where T : DependencyObject
{
    int childCount = VisualTreeHelper.GetChildrenCount(parent);
    for (int i = 0; i < childCount; i++)
    {
        DependencyObject child = VisualTreeHelper.GetChild(parent, i);
        if (child is T)
        {
            return (T)child;
        }
        else
        {
            T result = FindVisualChild<T>(child);
            if (result != null)
                return result;
        }
    }
    return null;
}