Implementation classes are "internal sealed"

[xenophilios]

Type of issue

Other (describe below)

Description

[Enter feedback here]
Thank you for a great article.
Could you please clarify whether it is necessary for the implementation classes to be internal and sealed?
Thank you for your trouble.

Page URL

https://learn.microsoft.com/en-us/dotnet/core/extensions/dependency-injection-usage

Content source URL

https://github.com/dotnet/docs/blob/main/docs/core/extensions/dependency-injection-usage.md

Document Version Independent Id

9a183e07-d5fd-1de9-796d-3bc77f07e033

Article author

@IEvangelist

Metadata

• ID: a4eb702a-d75f-f780-aef1-2e858e14258f
• Service: dotnet-fundamentals

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Associated WorkItem - 280587