I'm trying to set the allowed characters in asp .net core identity. I have the following setting in my startup.cs file:
options.User.AllowedUserNameCharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-@._+";
I'm trying to set my user name to the supplied email address. In debugging, my email address is coming through properly. Any insight into what I should set on this?