Protobuf for Enum

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Rashmi Vijay

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May 21, 2021, 2:56:24 AM5/21/21

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What is the difference it makes if we decorate the enum with ProtoContract in C# enum while doing Protobuf Serialization. I do get the value when i do deserialization irrespective of that Attribute on Enum. Then what is the best Practice?

Marc Gravell

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May 21, 2021, 5:19:58 AM5/21/21

to Rashmi Vijay, Protocol Buffers

This is specific to protobuf-net. If you're using v3, the main usage here is to provide explicit names for the enum and (via ProtoEnumAttribute) the defined values; the names only matter if you are generating a .proto from a code-first model (GetSchema(), GetProto<T>(), etc)

In v2, you can *also* use ProtoEnumAttribute to provide explicit serialization values different to the natural value, or you can tell it to *always* use natural values (with no attempt to consider mapped values) via EnumPassthru on ProtoContractAttribute, however: these features are deprecated in v3 - enums are now *always* treated as direct pass-thru values with no attempt to map values.

On Fri, 21 May 2021 at 07:56, Rashmi Vijay <rash...@gmail.com> wrote:

What is the difference it makes if we decorate the enum with ProtoContract in C# enum while doing Protobuf Serialization. I do get the value when i do deserialization irrespective of that Attribute on Enum. Then what is the best Practice?

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