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Now that LINQ to SQL is a little more mature, I’d like to know of any techniques people are using to create an n-tiered solution using the technology, because it does not seem that obvious to me.
LINQ to SQL doesn’t really have a n-tier story that I’ve seen, since the objects that it creates are created in the class with the rest of it, you don’t really have an assembly that you can nicely reference through something like Web Services, etc.
The only way I’d really consider it is using the datacontext to fetch data, then fill an intermediary data model, passing that through, and referencing it on both sides, and using that in your client side – then passing them back and pushing the data back into a new Datacontext or intellgently updating rows after you refetch them.
That’s if I’m understanding what you’re trying to get at :\
I asked ScottGu the same question on his blog when I first started looking at it – but I haven’t seen a single scenario or app in the wild that uses LINQ to SQL in this way. Websites like Rob Connery’s Storefront are closer to the provider.