Proper way to structure a Sync Framework DAL

I am creating a WPF app that needs to allow users to work in a temporary disconnected state and I plan to use a Local Database Cache.

My question's are about my data access layer.

• Do you typically create the whole DAL to point at the Cache or both and create a switching mechanism?

• Is Entity's a good way to go for my DAL against the Cache?

• I am used to L2S but my understanding is that I can't use that against SQLCE, correct?

Thanks!

PS: Any good 开发者_JAVA技巧resources out there for using Sync, Linq, and WPF ALL TOGETHER? Tutorials, videos, etc?

You might be interested in the Microsoft Sync Framework or at least some of the resources and examples.

You might want to look at this blog post: http://blogs.msdn.com/matt/archive/2008/09/09/sql-ce-3-5-with-linq-to-sql.aspx