我找不到任何明显的问题.

I cannot find any obvious issues.

如果您的记录占用大量内存，则可能存在内存问题.您可以使用Debug->启动Windows Phone应用程序分析.

If your records consume a lot of memory, perhaps there is a memory issue. You can use Debug->Start Windows Phone Application Analysis.

由于这是Windows Phone Toolkit的问题，因此源代码可用，发布新问题的位置是 这里.

As this is a Windows Phone Toolkit issue, the source code is available, and the place to post a new issue is here.

希望这会有所帮助，
标记

Hope this helps,
Mark