c# - Check if a username has been registered -

I am using builtin asp.NET logon and user management features What is a method of identifying a user name Or is the email address already registered or not? I would have thought that this is part of FormsAuthentication or similar, but such a function can not be found.

Check if the empty value comes back or not.

If you want to create a new user and you are doing this test as part of that process, then call and get the membership creates the status due to the failure For, if it fails, it fails.