How to retrieve identity claim values in _Layout.cshtml

Question

I am googling for this thing for quit a long time but still can't get proper answer. I am using identity claim for user authentication and I need some claim values in my _Layout.cshtml page. However I can retrieve custom identity claim values but not built in ones.

Here I set my identity:

 var ident = new ClaimsIdentity(
                new[] { 
                    // adding following 2 claim just for supporting default antiforgery provider
                    new Claim(ClaimTypes.NameIdentifier, user.LoginId),
                    new Claim("http://schemas.microsoft.com/accesscontrolservice/2010/07/claims/identityprovider", "ASP.NET Identity", "http://www.w3.org/2001/XMLSchema#string"),
                    new Claim(ClaimTypes.Name,user.UserName),
                    new Claim(ClaimTypes.Sid,user.UserId.ToString()),
                    new Claim("OperationType", user.OperationType.ToString()),
                    new Claim("ImageLink", user.ImageLink.ToString())

                },
                DefaultAuthenticationTypes.ApplicationCookie);
            var claimsPrincipal = new ClaimsPrincipal(ident);
            // Set current principal
            Thread.CurrentPrincipal = claimsPrincipal;

and my layout page code:

@using System.Security.Claims;
...........
@{  
    string userDesignation = ((ClaimsIdentity)User.Identity).FindFirst("OperationType").Value; ;
    string userImage = ((ClaimsIdentity)User.Identity).FindFirst("ImageLink").Value; ;

}

I can retrieve my custom claims(ImageLink,OperationType) values but couldn't able to retrieve (Name,Sid) with the same pattern. Some of answers I found that said about Extension methods. Is that only way for retrieve values or have any other way? Thanks in advance

Answer 1

Please use threading namespace in top of your layout page

@using System.Threading;

and access your claim types as following

@{  
string userDesignation = ((ClaimsIdentity)User.Identity).FindFirst("OperationType").Value;
string userImage = ((ClaimsIdentity)User.Identity).FindFirst("ImageLink").Value;


var identity = (ClaimsPrincipal)Thread.CurrentPrincipal;

    // Get the claims values
    var id= identity.Claims.Where(c => c.Type == ClaimTypes.Sid)
        .Select(c => c.Value).SingleOrDefault();
    var s = id;
//so on.......
}

But @Erik Philips is right. You should use those logic as partial.