title: How To Query A Dictionary on MongoDB
body: <p>I have the following class</p>
  
  <pre><code>public class Group {
    [BsonId]
    public ObjectID _id {get; set;}
    [BsonElement("Me")]
    public Members Dictionary&lt;ObjectId, UserGroupProperties&gt; Members {get; set;}
  }
  </code></pre>
  
  <p>How Do I query on Members property? Where Memebres.ObjectId == objectid?
  Thanks!</p>