remove warning for obsolete code showing interop

Author: christiannagel

.gitignore

@@ -13,6 +13,9 @@
 # User-specific files (MonoDevelop/Xamarin Studio)
 *.userprefs
 
+# Visual Code
+.vscode
+
 # Mono auto generated files
 mono_crash.*
 

1_CS/Tasks/AsyncSamples.sln

@@ -4,6 +4,9 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 VisualStudioVersion = 17.0.31912.275
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{4034038A-8C68-483D-9931-733C9079A9AF}"
+	ProjectSection(SolutionItems) = preProject
+		.editorconfig = .editorconfig
+	EndProjectSection
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ErrorHandling", "ErrorHandling\ErrorHandling.csproj", "{2880F972-FE3D-489B-A141-37C1ACDBDDA7}"
 EndProject

1_CS/Tasks/TaskFoundations/Program.cs

@@ -56,7 +56,9 @@ private static async void UseValueTask()
 
     private static async void ConvertingAsyncPattern()
     {
+#pragma warning disable SYSLIB0014 // This method is used to demonstrate the old async pattern and convert it to the task-based async pattern
         HttpWebRequest? request = WebRequest.Create("http://www.microsoft.com") as HttpWebRequest;
+
         if (request == null) return;
 
         using WebResponse response = await Task.Factory.FromAsync<WebResponse>(request.BeginGetResponse(null, null), request.EndGetResponse);
@@ -65,6 +67,8 @@ private static async void ConvertingAsyncPattern()
         using StreamReader reader = new(stream);
         string content = reader.ReadToEnd();
         Console.WriteLine(content.Substring(0, 100));
+
+#pragma warning restore SYSLIB0014
     }
 
     private static async void MultipleAsyncMethods()