Update 07082021

WebFormApp/Account/ResetPassword.aspx.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Linq;
+using System.Web;
+using System.Web.UI;
+using Microsoft.AspNet.Identity;
+using Microsoft.AspNet.Identity.Owin;
+using Owin;
+using WebFormApp.Models;
+
+namespace WebFormApp.Account
+{
+    public partial class ResetPassword : Page
+    {
+        protected string StatusMessage
+        {
+            get;
+            private set;
+        }
+
+        protected void Reset_Click(object sender, EventArgs e)
+        {
+            string code = IdentityHelper.GetCodeFromRequest(Request);
+            if (code != null)
+            {
+                var manager = Context.GetOwinContext().GetUserManager<ApplicationUserManager>();
+
+                var user = manager.FindByName(Email.Text);
+                if (user == null)
+                {
+                    ErrorMessage.Text = "Es wurde kein Benutzer gefunden.";
+                    return;
+                }
+                var result = manager.ResetPassword(user.Id, code, Password.Text);
+                if (result.Succeeded)
+                {
+                    Response.Redirect("~/Account/ResetPasswordConfirmation");
+                    return;
+                }
+                ErrorMessage.Text = result.Errors.FirstOrDefault();
+                return;
+            }
+
+            ErrorMessage.Text = "Fehler";
+        }
+    }
+}