How to include() nested child entity in linq

Question

How do I include a child of a child entitiy?

Ie, Jobs have Quotes which have QuoteItems

var job = db.Jobs
            .Where(x => x.JobID == id)
          


        

Answer 1

To get a job and eager load all its quotes and their quoteitems, you write:

var job = db.Jobs
        .Include(x => x.Quotes.Select(q => q.QuoteItems))
        .Where(x => x.JobID == id)
        .SingleOrDefault();

You might need SelectMany instead of Select if QuoteItems is a collection too.

Note to others; The strongly typed Include() method is an extension method so you need to include using System.Data.Entity; at the top of your file.