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DotNetOpenId - public identifier receives some data

I am using OpenId on a new website and trying to get basic user information, see the code below. Why the following: null?

var myData = response.GetExtension<ClaimsResponse>();

And the main code

 [System.Web.Mvc.AcceptVerbs(HttpVerbs.Get)] public ActionResult LogOn() { var openid = new OpenIdRelyingParty(); IAuthenticationResponse response = openid.GetResponse(); if (response != null) { switch (response.Status) { case AuthenticationStatus.Authenticated: FormsAuthentication.RedirectFromLoginPage( response.ClaimedIdentifier, false); var myData = response.GetExtension<ClaimsResponse>(); break; case AuthenticationStatus.Canceled: ModelState.AddModelError("loginIdentifier", "Login was cancelled at the provider"); break; case AuthenticationStatus.Failed: ModelState.AddModelError("loginIdentifier", "Login failed using the provided OpenID identifier"); break; } } return View("Register"); } [System.Web.Mvc.AcceptVerbs(HttpVerbs.Post)] public ActionResult LogOn(string loginIdentifier) { if (!Identifier.IsValid(loginIdentifier)) { ModelState.AddModelError("loginIdentifier", "The specified login identifier is invalid"); return View(); } else { var openid = new OpenIdRelyingParty(); IAuthenticationRequest request = openid.CreateRequest( Identifier.Parse(loginIdentifier)); // Require some additional data request.AddExtension(new ClaimsRequest { Email = DemandLevel.Request, FullName = DemandLevel.Request }); return request.RedirectingResponse.AsActionResult(); } }
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