Readonly

Helpers/HelperDirectory.cs

@@ -1,9 +1,11 @@
+using System.Collections.ObjectModel;
+
 namespace File_Folder_Helper.Helpers;
 
 internal static class HelperDirectory
 {
 
-    internal static List<string> GetDirectoryNames(string directory)
+    internal static ReadOnlyCollection<string> GetDirectoryNames(string directory)
     {
         List<string> results = [];
         string? fileName;
@@ -36,7 +38,7 @@ internal static class HelperDirectory
         }
         results.Add(pathRoot);
         results.Reverse();
-        return results;
+        return new(results);
     }
 
 }