Fix CA2000 Warning: Properly Dispose of RegistryKey in Example Code. (#44089)

Author: shethaadit

docs/framework/migration-guide/snippets/csharp/versions-installed.cs

@@ -98,7 +98,8 @@ private static void Get45PlusFromRegistry()
         //<snippet2>
         const string subkey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\";
 
-        using (var ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(subkey))
+        using (var baseKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32))
+        using (var ndpKey = baseKey.OpenSubKey(subkey))
         {
             if (ndpKey != null && ndpKey.GetValue("Release") != null)
             {

docs/framework/migration-guide/snippets/visual-basic/versions-installed.vb

@@ -72,7 +72,8 @@ Module Program
     Private Sub Get45PlusFromRegistry()
         Const subkey As String = "SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\"
 
-        Using ndpKey As RegistryKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(subkey)
+        Using baseKey As RegistryKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32),
+            ndpKey As RegistryKey = baseKey.OpenSubKey(subkey)
             If ndpKey IsNot Nothing AndAlso ndpKey.GetValue("Release") IsNot Nothing Then
                 Console.WriteLine($".NET Framework Version: {CheckFor45PlusVersion(ndpKey.GetValue("Release"))}")
             Else