CODEWITHSUNDEEP
entity-frameworkc#-4.0
Bryant
Bryant

Reputation: 99

EF ObjectQuery<T> query = ObjectSet; So close

In my RepositoryBase within the DAL I have the code below...I can't seem to figure out ObjectQuery query = ObjectSet; ? Am I close?

public IEnumerable<T> QueryObjectGraph(Expression<Func<T, bool>> filter, params string[] children)
    {
        //ObjectQuery<T> query = ObjectSet;  //nope...requires 1 type argument
        //ObjectQuery<T> query = ObjectSet<T>; //nope......type used like variable
        // ObjectQuery<T> query = ObjectSet<T>(); //nope ...type used like variable
        //ObjectQuery<T> query = new ObjectSet<T>(); //nope...no constructors defined
        IQueryable<T> query;

        foreach (var child in children)
        {
            query = query.Include(child);
        }

        return query.Where(filter);
    }

Upvotes: 0

Views: 1592

Answers (1)

Piotr Perak
Piotr Perak

Reputation: 11088

Chill out man. Didn't mean to sound rude. You just don't know what you are doing. If you look here http://msdn.microsoft.com/en-us/library/dd412719.aspx you see that ObjectSet is ObjectQuery so assignment does work. But you have to have ObjectSet created first!

"Since I am the expert"

Look amazingly this code works

using (var ctx = new ModelContainer())
{
    ObjectQuery<Person> objectQuery = ctx.People;
}

and type of ctx.People is ObjectSet

What is ObjectSet commented out in your code? Where it is created?

Upvotes: 3

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