阿倫的學習天地

首先要先去擴充自己AspNetUsers的欄位，這就不多說明，像我現在就去

增加了兩個EmployeeId和Name。

接著這是我最原始的取得這兩個寫法

public static class AuthorizeExtensions
    {
public static string GetEmployeeName(this IIdentity identity)
        {


            if (identity == null)
            {
                throw new ArgumentNullException("identity");
            }

            var ci = identity as ClaimsIdentity;


            if (ci != null)
            {
                UserManager<ApplicationUser> UserManager = new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(new ApplicationDbContext()));
                var user = UserManager.FindById(ci.GetUserId());

                return user.EmployeeName;
            }

            return null;
        }
}

但是一直到後來參考了這篇文章

http://stackoverflow.com/questions/27683169/identity-2-0-creating-custom-claimsidentity-eg-user-identity-getuserbyidint

首先，我先去到我登入的地方 改寫了登入方式

public ApplicationUser m_user = new ApplicationUser();

public async Task<ActionResult> Index(LoginViewModels LoginVM, string ReturnUrl)
        {
m_user.Id = "帳號GUId";
                m_user.UserName = "UserName";

//舊寫法，取不到EmployeeId，必須連接db再去找
//await SignInManager.SignInAsync(m_user, isPersistent: false, rememberBrowser: false);

//新寫法
AuthenticationManager.SignOut(DefaultAuthenticationTypes.ExternalCookie);
                var identity = await UserManager.CreateIdentityAsync(m_user, DefaultAuthenticationTypes.ApplicationCookie);
                identity.AddClaim(new Claim("EmployeeId", "編號"));
                identity.AddClaim(new Claim("EmployeeName", "性明"));
                AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = false }, identity);


}

寫完之後，回到擴充方法那邊去改寫，只剩下一行

public static class AuthorizeExtensions
{
 public static string GetEmployeeName(this IIdentity identity)
{
 if (identity == null)
            {
                throw new ArgumentNullException("identity");
            }

            return ((ClaimsIdentity)identity).FindFirstValue("EmployeeName");
}
}

這樣子就可以完全做到了，有什麼不對還請糾正指導