Unable to cast object of type System.Security.Claims.ClaimsPrincipal to type Microsoft.IdentityModel.Claims.IClaimsPrincipal
What you observe is result of mixing .NET 3.5 WIF (Microsoft.IdentityModel) and WIF 4.0 (System.IdentityModel & System.Security).What I suggest is:
- Remove reference to Microsoft.IdentityModel.* assemblies in your project
- Add reference to System.IdentityModel & System.IdentityModel.Services assemblies
- Fix using statements
- Fix references to Microsoft.IdentityModel in your Web.Config
Do a backup copy of your project before doing this, because, if you haven't done this before, you might end up with a lot of error and not working code. But the main idea is that you have to get rid of all and any Microsoft.IdentityModel references and you will be good.
I am able resolved this issue as per astaykov suggestion and i changed the code like below,
using System.Security.Claims;var identity = User.Identity as ClaimsIdentity; foreach (var claim in identity.Claims) { if (claim.Type.Contains("EmailAddress")) { ViewBag.EmailName = claim.Value; } }