滚动到底部时将更多项目加载到 ListBox 中 [英] Load more items into ListBox when scrolled to bottom

问题描述

我已将 ListBox 绑定到 List.我想在滚动到列表底部时加载更多项目，以便显示一些指示加载的动画并展开绑定列表.如果我理解正确，我可以使用 ObservableCollection 而不是 List 并扩展该集合.此外，我可以使用底部的 ItemPresenter 和 Image 将 ItemPresenter 包装到 StackPanel 中.

I've got ListBox bound to List. I want to load more items when scrolled to bottom of list so that some animation indicating loading is shown and bound list is expanded. If I understand correctly, I can use ObservableCollection instead of List and expand that collection. Also, I could wrap ItemPresenter into StackPanel with ItemPresenter and Image at bottom.

但是如何检测列表已滚动到底部并开始扩展集合?

But how do I detect that list has been scrolled to bottom and initiate expanding of collection?

推荐答案

查看教程:

• http://blog.slimcode.com/2010/09/11/detect-when-a-listbox-scrolls-to-its-end-wp7/
• http://danielvaughan.orpius.com/post/Scroll-Based-Data-Loading-in-Windows-Phone-7.aspx

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