How to raise a 401 (Unauthorized access) exception in Sharepoint?

As the title said, I need to raise (from the C# code behind a custom SharePoint page) a 401 error page. Any 开发者_如何学Chelp?

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Try this:

throw new HttpException(401, "Unauthorized access");

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If the exception is SharePoint related it's best to throw a SharePoint exception

throw new SPException("Not Authorized");

See also http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spexception.aspx

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return new HttpUnauthorizedResult();

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try this:

throw new UnauthorizedAccessException($"Some message");