相关疑难解决方法(0)

我的 mongo 域对象有继承：

public abstract class Entity : IEntity
{
   [BsonId]     
   [BsonRepresentation(BsonType.ObjectId)]
   public string Id { get; set; }
   [BsonIgnore]
   public abstract string CollectionName { get; }
}

[BsonDiscriminator(Required = true)]
[BsonKnownTypes(typeof(Sub1), typeof(Sub2), typeof(Sub3))]
public class Main:Entity
{
   public string Name {get; set;}
   public string Address {get; set;}
}

[BsonDiscriminator(SubType.Sub1)]
public class Sub1: Main, IWorkAttached
{}

[BsonDiscriminator(SubType.Sub2)]
public class Sub2: Main, IWorkAttached
{}

[BsonDiscriminator(SubType.Sub3)]
public class Sub3: Main
{}

public interface IWorkAttached
{
   public string WorkId {get; set;}
}

我有更新实体的方法： …