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Asked: 2026-05-27T18:04:49+00:00

Is it possible to store the metadata information of 2 models in a single

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Is it possible to store the metadata information of 2 models in a single class?

For example I’m working on Login and Registration model, both has username and password. Usually we create another class that will contain the meta data information: LoginMetadata and RegistrationMetadata. Or put the metadata information in the Login and Registration class.

What I want to do is to create a single UserMetadata class then store the combined metadata information from Login and Registration model in it. In this case I have a single validation rule for username, password, etc. Is that possible?

Regards,
czetsuya

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1 Answer

  1. Editorial Team

    It´s not possible to store metadata for multiple classes in one class.

    The MetaDataTypeAttribute is decorated with [AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = false)], so it can only be used on classes and can only be used once. It means that you cannot not define a class as a metadata placeholder for multiple classes.

    Link to MSDN Documentation for MetaDataTypeAttribute.

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