Sort by array field in dotnet

Working with Data Drivers
,
1

hello! I am trying sort by array field in dotnet (c# mongoDbDrive), but without success.

mql:

db.Contact.find({})
   .projection({})
   .sort({"Channels.LastActiveUTC": -1})
   .limit(10)

c#

public class Contact
{
 public List<Channel> Channels { get; set; }
}
Public class Channel
{
public DateTime? LastActiveUTC { get; set; }
}

Db.GetCollection<Contact>("Contact").AsQueryable().OrderByDescending("Channels.LastActiveUTC").Take(10).ToList();

error: erro: System.InvalidOperationException: No property ‘Channels.LastActiveUTC’ found on type ‘Contact’