Join and Include in Entity Framework

Question

I have the following query of linq to entities. The problem is that it doesn't seem to load the "Tags" relation even though i have included a thing for it. It works fine if i do not join on tags but i need to do that.

            var items = from i in db.Items.Include("Tags")                         from t in i.Tags                         where t.Text == text                         orderby i.CreatedDate descending                         select i; 

Is there any other way to ask this query? Maybe split it up or something?

Answer 1

Well, the Include contradicts the where. Include says, "Load all tags." The where says, "Load some tags." When there is a contradiction between the query and Include, the query will always win.

To return all tags from any item with at least one tag == text:

        var items = from i in db.Items.Include("Tags")                     where i.Tags.Any(t => t.Text == text)                     orderby i.CreatedDate descending                     select i; 

(Untested, as I don't have your DB/model)

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