System.ServiceModel.ServiceHost implements IDisposable but Dispose is not public

Why is that开发者_Python百科?

This is not a question about the using keyword.

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System.ServiceModel.ServiceHost implements the IDisposable interface explicitly. This prevents that interface complicating the the ServiceHost class itself. It also avoids situations where more than one interface implemented by a class defines a method with the same signature.

The Dispose method can be accessed by casting the ServiceHost object to an IDisposable.

Also helpful Q/A around it.