C# 用户登录后更新声明

是否可以在用户登录后更新声明？我在我的网站上有前端和管理面板，基本上我是用

声明
来实现这一点的。如果用户在前端以
Susan
身份登录，我在代码中执行了如下操作：

var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);

userIdentity.AddClaim(new Claim("Id", this.UserName));
... //other claims here

所以，当用户最终登录到管理面板时（仍然登录到前端），我只想添加更多声明，例如：

userIdentity.AddClaim(new Claim("BackEndId", this.UserName));

如何实现这一点？
要能够读取cookie上的声明，您需要为我们的用户签名，并在同一请求期间再次将其重新登录：

idenityt.AddClaim(new Claim("myClaimType", "myClaimValue"));

var authenticationManager = HttpContext.Current.GetOwinContext().Authentication;
authenticationManager.SignOut(DefaultAuthenticationTypes.ApplicationCookie);
authenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = false }, idenityt);

将函数添加到Identity.Config.cs中的ApplicationSignInManager类

以您发布的代码行为例有什么不对？
    public override Task SignInAsync(ApplicationUser user, bool isPersistent, bool rememberBrowser)
     {
                var claims = new List<Claim>()
                {
                   new Claim("Id", this.UserName),
                   new Claim("BackEndId", this.UserName)
                };
                this.AuthenticationManager.User.AddIdentity(new ClaimsIdentity(claims));
                return base.SignInAsync(user, isPersistent, rememberBrowser);
    }

private ClaimsPrincipal GetCurrentUser()
        {
            var context = HttpContext.GetOwinContext();
            if (context == null)
                return null;

            if (context.Authentication == null || context.Authentication.User == null)
                return null;

            return context.Authentication.User;
        }


private string GetUserId()
        {
            var user = GetCurrentUser();
            if (user == null)
                return null;

            var claim = user.Claims.FirstOrDefault(o => o.Type == "Id");
            if (claim == null)
                return null;

            return claim.Value;
        }


 private string GetBackEndId()
            {
                var user = GetCurrentUser();
                if (user == null)
                    return null;

                var claim = user.Claims.FirstOrDefault(o => o.Type == "BackEndId");
                if (claim == null)
                    return null;

                return claim.Value;
            }