Get UserID (not Identity.Name) inside Action Filter

Question

I need to find UserID in an Action Filter of an ASP.Net MVC application. I can get the same in a normal controller as shown below.

I know how to get UserName in Action Filter.

But when I try to get UserID, I get error

string userID = filterContext.HttpContext.User.Identity.GetUserID();

Error CS1061 'IIdentity' does not contain a definition for 'GetUserID' and no extension method 'GetUserID' accepting a first argument of type 'IIdentity' could be found

How to get UserID inside Action Filter?

Update - REFERENCE:

1. ClaimsIdentityExtensions

Code for Action Filter

using System;
using System.Collections.Generic;////Not used
using System.Linq;////Not used
using System.Web;////Not used
using System.Web.Mvc;
using System.Web.Routing;
using Microsoft.AspNet.Identity; ////Not used

namespace MyPortal
{
    public class ActionFilterSessionCheck : ActionFilterAttribute, IActionFilter
    {
        void IActionFilter.OnActionExecuting(ActionExecutingContext filterContext)
        {
            string userName = null;
            if (filterContext.HttpContext.User.Identity.IsAuthenticated)
            {
                userName = filterContext.HttpContext.User.Identity.Name;

                //ERROR***
                //string userID = filterContext.HttpContext.User.Identity.GetUserID();

            }

            string sessionLogin = "Login" + userName;
            if (userName == null || (System.Web.HttpContext.Current.Session[sessionLogin] == null))
            {

                if (filterContext.HttpContext.Request.IsAjaxRequest())
                {
                    //AJAX request
                    throw new Exception("Session time out");
                }
                else
                {
                    // Standard request
                    filterContext.Result = new RedirectToRouteResult(
                                       new RouteValueDictionary
                                       {
                                       { "action", "Login" },
                                       { "controller", "Account" }
                                       });
                }
            }


            //Call standard behavior
            this.OnActionExecuting(filterContext);
        }
    }

}

Answer 1

The function you need is GetUserId, not GetUserID. It is defined here.

The difference between your working example and your error is simply that you wrongly use ID instead of Id.