I'm using Membership with ASP.Net. Is there a way to check if a username exists? On login, I'm checking to see if an account is locked out. But when a user enters in a username that is not in the system, they get the ugly YSOD error. I want to handle that more gracefully by giving them a message telling them the account does not exist and to contact the site admin. Is there a way to do this? I'm using C# code behind. Thanks.