Question

I am trying to implement Api Controller which gets data from MongoDB. It would be nice to support IQueryable interface for OData when C# driver since version 1.4 supports LINQ.

public class UserController : ApiController
{
  private MongoCollection<User> collection;

  public UserController()
  {
    var connectionString = ConfigurationManager.ConnectionStrings["mongo"].ConnectionString;
    var database = MongoDatabase.Create(connectionString);
    this.collection = database.GetCollection<User>("users");
  }

  public IQueryable<User> Get()
  {
    return this.collection.AsQueryable<User>();
  }
}

When I am trying to get users I receive following exception:
System.ArgumentOutOfRangeException
Specified argument was out of the range of valid values. Parameter name: Unable to find root IQueryable

Does anybody know what is the reason?

Answer 1

Solved in asp.net mvc 4 release.
Great implementation:
http://www.strathweb.com/2012/08/supporting-odata-inlinecount-with-the-new-web-api-odata-preview-package/