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POEntity Framework join statement in a function
 

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    <p>I'm trying to create a function to grab a List&lt;>() of type "tableContact" which is an entity (sort of like when you do a simple select statement: query.ToList();)</p> <p>But this is becoming frustrating because I kept getting "null object reference" errors. For some reason "join" statement doesn't work, so I tried an alternate linq statement.</p> <p>I have an Object2Contacts table that I want to LEFT JOIN and I'm looking up my Object and trying to see all the contacts for this Object. I also can't figure out how to change an "anonymous type" back into an entity table.</p> <p>Also not every object has contacts, so sometimes null List&lt;> should be returned.</p> <pre><code>public List&lt;tableContact&gt; getContactsForObject(int oid) { if (oid &gt; 0) { var query = (from s in entities.tableContacts from o in entities.tableObject2Contacts where s.contact_id == o.contact_id where o.object_id == oid select new { s }); if (query != null) { IEnumerable&lt;tableContact&gt; e = (IEnumerable&lt;tableContact&gt;)query.ToList(); return (List&lt;tableContact&gt;)e; } } return new List&lt;tableContact&gt;(); } </code></pre> <p>I want to then loop through the object returned... e.g.:</p> <pre><code>foreach ( tableContact c in MyList){ WriteLine(c.Name); } </code></pre> <p><strong>EDIT</strong> I also tried:</p> <pre><code>List&lt;tableContacts&gt; contacts = (from s in entities.tableContacts join o in entities.tableObject2Contacts on s.contact_id equals o.contact_id where o.object_id == oid select s).ToList(); </code></pre> <p>Then I can't convert it back into a List and still "null reference".</p> <p><strong>EDIT 2</strong> Yes the query I am running may definitely bring in an "empty" list. I don't mind empty lists, but it shouldn't give "object null reference."</p>
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