From b90a4c02a5ce77aad7023f486f535e897d133c61 Mon Sep 17 00:00:00 2001
From: Kimi Loeffel <kimi.loeffel@bit.admin.ch>
Date: Fri, 30 Dec 2022 16:12:40 +0100
Subject: [PATCH] fix little bug with notify on change

---
 Group.cs | 6 +++---
 User.cs  | 8 ++++----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/Group.cs b/Group.cs
index f3f4781..0403d4b 100644
--- a/Group.cs
+++ b/Group.cs
@@ -12,15 +12,15 @@ namespace YOUserbase {
 
         private static int index = 0;
 
-        public Group () {
+        public Group() {
             Id = ++index;
         }
 
         // Wrpper to change vaulue and notify if it changed
-        private void ChangeValue<T> (ref T field, T value, [CallerMemberName] string propertyName = "") {
+        private void ChangeValue<T>(ref T field, T value, [CallerMemberName] string propertyName = "") {
             if(!value.Equals(field)) {
                 field = value;
-                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
+                if(PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
             }
         }
 
diff --git a/User.cs b/User.cs
index 4adcf13..e6956d8 100644
--- a/User.cs
+++ b/User.cs
@@ -26,19 +26,19 @@ namespace YOUserbase {
 
         private static int index = 0;
 
-        public User () {
+        public User() {
             Id = ++index;
         }
 
-        public User (int id) {
+        public User(int id) {
             Id = id;
         }
 
         // Wrpper to change vaulue and notify if it changed
-        private void ChangeValue<T> (ref T field, T value, [CallerMemberName] string propertyName = "") {
+        private void ChangeValue<T>(ref T field, T value, [CallerMemberName] string propertyName = "") {
             if(!value.Equals(field)) {
                 field = value;
-                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
+                if(PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
             }
         }