Added detail of UserPasswordResettingNotification

Author: AndyButland

15/umbraco-cms/SUMMARY.md

@@ -362,6 +362,7 @@
   * [Determining if an entity is new](reference/notifications/determining-new-entity.md)
   * [MediaService Notifications Example](reference/notifications/mediaservice-notifications.md)
   * [MemberService Notifications Example](reference/notifications/memberservice-notifications.md)
+  * [UserService Notifications Example](reference/notifications/userservice-notifications.md)
   * [Sending Allowed Children Notification](reference/notifications/sendingallowedchildrennotifications.md)
   * [Umbraco Application Lifetime Notifications](reference/notifications/umbracoapplicationlifetime-notifications.md)
   * [EditorModel Notifications](reference/notifications/editormodel-notifications/README.md)

15/umbraco-cms/reference/notifications/README.md

@@ -285,5 +285,6 @@ Below you can find some articles with some examples using Notifications.
 * [Hot vs. cold restarts](hot-vs-cold-restarts.md)
 * [MediaService Notifications](mediaservice-notifications.md)
 * [MemberService Notifications](memberservice-notifications.md)
+* [UserService Notifications](userservice-notifications.md)
 * [Sending Allowed Children Notification](sendingallowedchildrennotifications.md)
 * [Umbraco Application Lifetime Notifications](umbracoapplicationlifetime-notifications.md)

15/umbraco-cms/reference/notifications/userservice-notifications.md

@@ -0,0 +1,29 @@
+---
+description: Example of how to use a UserService Notification
+---
+
+# UserService Notifications
+
+The UserService implements `IUserService` and provides access to operations involving `IUser`.
+
+The following example illustrates how the password reset feature can be cancelled for a given set of users.
+
+## Usage
+
+```csharp
+using Umbraco.Cms.Core.Events;
+using Umbraco.Cms.Core.Notifications;
+
+namespace MySite;
+
+public class UserPasswordResettingNotificationHandler : INotificationHandler<UserPasswordResettingNotification>
+{
+    public void Handle(UserPasswordResettingNotification notification)
+    {
+        if (notification.User.Name?.Contains("Eddie") ?? false)
+        {
+           notification.CancelOperation(new EventMessage("fail", "Can't reset password for users with name containing 'Eddie'"));
+        }
+    }
+}
+```