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?

Try this:

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

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

return new HttpUnauthorizedResult();

try this:

throw new UnauthorizedAccessException($"Some message");