From 1ac34c7625696d6affecb207cd474d7f786a1a54 Mon Sep 17 00:00:00 2001
From: Manuel Thalmann <m@nuth.ch>
Date: Fri, 22 Mar 2024 02:35:19 +0100
Subject: [PATCH] Drop use of `CallerMemberName`

---
 Tasks/UrlTester/DT3/DT3.cs | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/Tasks/UrlTester/DT3/DT3.cs b/Tasks/UrlTester/DT3/DT3.cs
index 44659c7..9b462cc 100644
--- a/Tasks/UrlTester/DT3/DT3.cs
+++ b/Tasks/UrlTester/DT3/DT3.cs
@@ -2,7 +2,6 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Diagnostics;
-using System.Runtime.CompilerServices;
 using System.Threading.Tasks;
 using System.Windows;
 using DT2;
@@ -35,7 +34,7 @@ namespace DT3 {
             set
             {
                 size = value;
-                NotifyPropertyChanged();
+                NotifyPropertyChanged(nameof(Size));
             }
         }
 
@@ -44,7 +43,7 @@ namespace DT3 {
             set
             {
                 time = value;
-                NotifyPropertyChanged();
+                NotifyPropertyChanged(nameof(Time));
             }
         }
 
@@ -53,14 +52,17 @@ namespace DT3 {
             set
             {
                 url = value;
-                NotifyPropertyChanged();
+                NotifyPropertyChanged(nameof(Url));
                 var _ = urlTester.GetUrlAsync(Url);
             }
         }
 
-        protected void NotifyPropertyChanged([CallerMemberName] string memberName = null)
+        protected void NotifyPropertyChanged(string memberName)
         {
-            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(memberName));
+            if (PropertyChanged != null)
+            {
+                PropertyChanged.Invoke(this, new PropertyChangedEventArgs(memberName));
+            }
         }
     }