title: How to save an Entity without the object Id or an id MongoDB C# Driver
body: <p>Um looking for a way to save a collection without an Id
  My Entity Declaration as follows </p>
  
  <pre><code>                public class TestA : IEntity
                      {
                          public string AppleSet { get; set; }
                          public string MapSted { get; set; }
  
                          [BsonIgnore]
                          public string Id { get; set; }
  
  
                      }
  </code></pre>
  
  <p>I need to declare ID field in the entity, is there a way to tell mongodb to ignore Id for a specific entity and save it to the database? </p>