Join between in memory collection and EntityFramework

Question

Is there any mechanism for doing a JOIN between an in-memory collection and entity framework while preserving the order.

What I am trying is

var ite         


        

Answer 1

try this:

var list = (from n in efRepo
           where myInMemoryList.Select(m=>m.RECORD_NUMBER).Contains(n.RECORD_NUMBER)
           select n).ToList();

Contains will be translated to IN operator in SQL (only if your RECORD_NUMBER member is a primitive type like int, string, Guid, etc)