I have been looking at LLBLGen for a couple of days now and I was wondering if anyone is using it to create LINQ queries on the client and then have them performed remotely on the server using WCF?

I would like to do the following:

var oldCustomers = Data.Customers.Where(c => c.EstablishedDate.Year == 2005);

Somehow the "system" would need to know to perform the query on the server.

Any ideas/thoughts?

You could use PredicateBuilder to generate a IQueryable to send to your WCF method. I never tried that but I think it should work:

var predicate = PredicateBuilder.Null<CustomerEntity>();
predicate = predicate.Or(c => c.EstablishedDate.Year == 2005);

var oldCustomers = Data.Customers.FetchFromCustomPredicate(predicate);