Multiple constraints example doesn't make any sense

[geoff-m]

Type of issue

Code doesn't work

Description

We are given this class declaration:

class EmployeeList<T> where T : Employee, System.Collections.Generic.IList<T>, IDisposable, new()

This class declaration is, at face value, nonsense. At least I personally have a hard time grasping what could be meant by it, and there is no discussion or example involving it in the document, which contains no motivation or way to use such a class. It is not at all clear how it could even be instantiated.

Page URL

https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/generics/constraints-on-type-parameters#feedback

Content source URL

https://github.com/dotnet/docs/blob/main/docs/csharp/programming-guide/generics/constraints-on-type-parameters.md

Document Version Independent Id

22b2c77c-2721-9384-3863-046e391ea4b1

Article author

@BillWagner

Metadata

• ID: 5712215d-b167-d9cb-bd51-80df0e300d50
• Service: dotnet-csharp
• Sub-service: fundamentals

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Associated WorkItem - 289448