protected void LinkOpenIdLogin_LoggedIn(object sender, EventArgs e) { OpenIdMembershipProvider provider = (OpenIdMembershipProvider)Membership.Providers[OpenIdMembershipProvider]; MembershipUser user = Membership.Providers[LinkOpenIdLogin.MembershipProvider].GetUser(LinkOpenIdLogin.UserName, false); provider.LinkUserWithOpenId(OpenId, user.ProviderUserKey); FormsAuthentication.RedirectFromLoginPage(user.UserName, false); }