C#•4mo ago

Modifier for a class you want as a base class only and making not accessible to external assemblies

I have a base class for other classes:

public class ApiGetOutcome
{// stuff }

public class ApiGetOutcome
{// stuff }

and I inherit it thus:

public class ApiGetFileOutcome: ApiGetOutcome
{// stuff }

public class ApiGetFileOutcome: ApiGetOutcome
{// stuff }

These are all in a class library which accesses an API. I don't want ApiGetOutcome visible outside the library, only ApiGetFileOutcome I've messed around with abstract and various modifiers, but can't seem to crack it. Would appreciate a steer!

2 Replies

Angius•4mo ago

Making it non-public would prevent the consumer from doing

void Foo(ApiGetOutcome outcome){}

Foo(new ApiGetFileOutcome());
Foo(new ApiGetExcelOutcome());

void Foo(ApiGetOutcome outcome){}

Foo(new ApiGetFileOutcome());
Foo(new ApiGetExcelOutcome());

that's why it's impossible

stigzler•4mo ago

thanks folks I tried the below (as it seemed liek the best option) but it didn't hide ApiGetOutcome to external assemblies:

    [EditorBrowsable(EditorBrowsableState.Never)]
    public class ApiGetOutcome {}

    [EditorBrowsable(EditorBrowsableState.Never)]
    public class ApiGetOutcome {}

Sorry I'm being dumb - what specifically are you meaning by the "IDE" - designer view, code view? I'm talking it doesn't hide the Class in the VS code editor for the external assembly Ah - good point. Abstract may be the best option, as VS is clear pre-compile that you can't new it up Good point + food for thought. Thanks to both of you for your help

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Modifier for a class you want as a base class only and making not accessible to external assemblies