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

What about loading the whole efRepo? I mean something like this (ToArray()):

var itemsToAdd = myInMemoryList.Join(
    efRepo.ToArray(),
    listitem => listitem.RECORD_NUMBER, efRepoItem => efRepoItem.RECORD_NUMBER, (left, right) => right);