All,
Currently the FilterDefinition<T> support for IMongoQueryable<T> works great via the Inject extension method.
We really should also have the ability to order by a SortDefinition<T> as well. I realize the Expression<Func<T, TKey>> parameter the typical OrderBy takes likely won't work as you're not actually sorting by a concrete field in the case of a MetaTextScore so my guess is an override would be needed but the ability to order our text searches from IMongoQueryable would be greatly appreciated.
The closest thing I found to this was on CSHARP-2566 there was a comment by Richard Collette about projecting the MetaTextScore. Since version 4.4 supports ordering by the score without having to also project it this is less of a concern to me.
Regards,
Brian