将新项目添加到WPF ListBox时的滑动效果 [英] Sliding effect when adding new items to a WPF ListBox

问题描述

我有一个WPF ListBox控件，用于显示RSS feed的项目.有时，我会在RSS feed的源中查找新项目.一旦检测到新项目，便将其添加到可观察的集合中，该集合立即将新项目添加到ListBox显示中.

I have a WPF ListBox control which displays items of an RSS feed. I occasionally check the source of the RSS feed for new items. Once I detect a new item I add it to the observable collection which immediately adds the new item to the ListBox display.

是否有办法从顶部推入"新项目，向下推现有项目?我将如何达到这样的效果?可以使用ListBox完成此操作，还是需要使用自己的容器，例如StackPanel并以编程方式设置动画(例如，新添加的控件的高度)?

Is there a way to 'slide in' the new item from the top, pushing down the existing items? How would I achieve such an effect? Can it be done with a ListBox, or do I need to resort to my own container, such as a StackPanel and animate for example the Height of newly added controls programmatically?

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