protected void CreateUser_Click(object sender, EventArgs e)
        {
            var manager = this.Context.GetOwinContext().GetUserManager<ApplicationUserManager>();
            var signInManager = this.Context.GetOwinContext().Get<ApplicationSignInManager>();
            var user = new User()
            {
                UserName = this.UserName.Text,
                FirstName = this.FirstName.Text,
                LastName = this.LastName.Text,
                Email = this.Email.Text
            };

            IdentityResult result;
            try
            {
                result = manager.Create(user, this.Password.Text);
            }
            catch (DbEntityValidationException ex)
            {
                this.ErrorMessage.Text = string.Empty;
                foreach (var entityValidationError in ex.EntityValidationErrors)
                {
                    foreach (var validationError in entityValidationError.ValidationErrors)
                    {
                        this.ErrorMessage.Text += validationError.ErrorMessage + " ";
                    }
                }

                return;
            }

            if (result.Succeeded)
            {
                // For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
                //string code = manager.GenerateEmailConfirmationToken(user.Id);
                //string callbackUrl = IdentityHelper.GetUserConfirmationRedirectUrl(code, user.Id, Request);
                //manager.SendEmail(user.Id, "Confirm your account", "Please confirm your account by clicking <a href=\"" + callbackUrl + "\">here</a>.");

                signInManager.SignIn( user, isPersistent: false, rememberBrowser: false);
                IdentityHelper.RedirectToReturnUrl(this.Request.QueryString["ReturnUrl"], this.Response);
            }
            else 
            {
                this.ErrorMessage.Text = result.Errors.FirstOrDefault();
            }
        }
        internal void AddUserAndRole()
        {
            // Access the application context and create result variables.
            var context = new SummitCommunityDbContext();
            IdentityResult IdRoleResult;
            IdentityResult IdUserResult;

            // Create a RoleStore object by using the ApplicationDbContext object. 
            // The RoleStore is only allowed to contain IdentityRole objects.
            var roleStore = new RoleStore<IdentityRole>(context);

            // Create a RoleManager object that is only allowed to contain IdentityRole objects.
            // When creating the RoleManager object, you pass in (as a parameter) a new RoleStore object. 
            var roleMgr = new RoleManager<IdentityRole>(roleStore);

            // Then, you create the "canEdit" role if it doesn't already exist.
            if (!roleMgr.RoleExists("admin"))
            {
                IdRoleResult = roleMgr.Create(new IdentityRole { Name = "admin" });
            }

            // Create a UserManager object based on the UserStore object and the ApplicationDbContext  
            // object. Note that you can create new objects and use them as parameters in
            // a single line of code, rather than using multiple lines of code, as you did
            // for the RoleManager object.
            var userMgr = new UserManager<User>(new UserStore<User>(context));
            var user = new User
            {
                FirstName = "John",
                LastName = "Doe",
                UserName = "******",
                Email = "*****@*****.**"
            };

            IdUserResult = userMgr.Create(user, "123456");

            // If the new "canEdit" user was successfully created, 
            // add the "canEdit" user to the "canEdit" role. 
            if (!userMgr.IsInRole(userMgr.FindByName("admin").Id, "admin"))
            {
                IdUserResult = userMgr.AddToRole(userMgr.FindByName("admin").Id, "admin");
            }
        }
        private void CreateAndLoginUser()
        {
            if (!IsValid)
            {
                return;
            }
            var manager = Context.GetOwinContext().GetUserManager<ApplicationUserManager>();
            var signInManager = Context.GetOwinContext().GetUserManager<ApplicationSignInManager>();
            var user = new User() { UserName = email.Text, Email = email.Text };
            IdentityResult result = manager.Create(user);
            if (result.Succeeded)
            {
                var loginInfo = Context.GetOwinContext().Authentication.GetExternalLoginInfo();
                if (loginInfo == null)
                {
                    RedirectOnFail();
                    return;
                }
                result = manager.AddLogin(user.Id, loginInfo.Login);
                if (result.Succeeded)
                {
                    signInManager.SignIn(user, isPersistent: false, rememberBrowser: false);

                    // For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
                    // var code = manager.GenerateEmailConfirmationToken(user.Id);
                    // Send this link via email: IdentityHelper.GetUserConfirmationRedirectUrl(code, user.Id)

                    IdentityHelper.RedirectToReturnUrl(Request.QueryString["ReturnUrl"], Response);
                    return;
                }
            }
            AddErrors(result);
        }