So I have a BsonDocument b (let\'s say it has FirstName, LastName, Age), which you could access as b[\"FirstName\"], etc...
If I try to do b[\"asdfasdf\"] (which doesn\'
You can use:
var GoodItems = Query.Exists("FirstName");
and than query
People.Find(GoodItems);
That way you'll get only the items that has "FirstName" defined.