Cannot deserialize a 'DateTimeOffset' from BsonType 'DateTime'

If you provide “DateTimeOffsetSupportingBsonDateTimeSerializer” , it’s will much better .

System.FormatException\r\nMessage: Cannot deserialize a ‘DateTimeOffset’ from BsonType ‘DateTime’.\r\nDataJson: {}\r\nStacktrace:\r\n at MongoDB.Bson.Serialization.Serializers.DateTimeOffsetSerializer.Deserialize(BsonDeserializationContext context, BsonDeserializationArgs args)\r\n at MongoDB.Bson.Serialization.Serializers.SerializerBase1.MongoDB.Bson.Serialization.IBsonSerializer.Deserialize(BsonDeserializationContext context, BsonDeserializationArgs args)\r\n at MongoDB.Bson.Serialization.IBsonSerializerExtensions.Deserialize(IBsonSerializer serializer, BsonDeserializationContext context)\r\n at MongoDB.Bson.Serialization.BsonClassMapSerializer1.DeserializeMemberValue(BsonDeserializationContext context, BsonMemberMap memberMap)\r\n",“Data”:null}

[Turnerj]

Hey @fcsamuel - unless you were to write your own DateTimeOffset serializer to handle it while you’re reading/writing to the data adhoc, I doubt there is a way.

MongoDB otherwise can’t interpret a BsonType DateTime as a .NET DateTimeOffset as they are just not compatible types.

[fcsamuel]

Hey @Turnerj,

What you’re seeing is that the data in the database is of type DateTime which isn’t compatible with DateTimeOffset (as there is no offset). The serializer stores DateTimeOffset in either an [array, a document or a string]

You may need to look at the BsonRepresentation attribute for your properties (part of the official driver).

Even using the BsonRepresentation with the types BsonType.Array, BsonType.Document, BsonType.String, I still get the error. Is there a way to convert it without having to ‘manually’ do the serialization?