MongoDB.Bson.Serialization.Serializers.StringSerializer.Deserialize C# (CSharp) Метод

        public override object Deserialize(
            BsonReader bsonReader,
            Type nominalType,
            Type actualType,
            IBsonSerializationOptions options)
        {
            VerifyTypes(nominalType, actualType, typeof(string));
            var representationSerializationOptions = EnsureSerializationOptions<RepresentationSerializationOptions>(options);

            var bsonType = bsonReader.GetCurrentBsonType();
            if (bsonType == BsonType.Null)
            {
                bsonReader.ReadNull();
                return null;
            }
            else
            {
                switch (bsonType)
                {
                    case BsonType.ObjectId:
                        if (representationSerializationOptions.Representation == BsonType.ObjectId)
                        {
                            return bsonReader.ReadObjectId().ToString();
                        }
                        else
                        {
                            goto default;
                        }
                    case BsonType.String:
                        return bsonReader.ReadString();
                    case BsonType.Symbol:
                        return bsonReader.ReadSymbol();
                    default:
                        var message = string.Format("Cannot deserialize string from BsonType {0}.", bsonType);
                        throw new Exception(message);
                }
            }
        }

        public override object Deserialize(BsonReader bsonReader, Type nominalType, IBsonSerializationOptions options)
        {
            var bsonType = bsonReader.GetCurrentBsonType();
              if (bsonType == BsonType.Null)
              {
            bsonReader.ReadNull();
            return null;
              }

              var serializer = new StringSerializer();
              var nvc = new NameValueCollection();

              bsonReader.ReadStartArray();
              while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
              {
            bsonReader.ReadStartArray();
            var key = (string) serializer.Deserialize(bsonReader, typeof (string), options);
            var val = (string) serializer.Deserialize(bsonReader, typeof (string), options);
            bsonReader.ReadEndArray();
            nvc.Add(key, val);
              }
              bsonReader.ReadEndArray();

              return nvc;
        }