听起来像您可以使用Paul的自定义DelayBinding Stovell发表了关于。我成功实施了延迟搜索/过滤功能，并成功使用了它。您可以在此处阅读以下内容：

Sounds like you could use a custom DelayBinding that Paul Stovell blogged about. I've used it with great success implementing delayed search/filtering. You can read about it here:

http：/ /www.paulstovell.com/wpf-delaybinding