DirectoryInfo.Delete() when files are read-only

DirectoryInfo.Delete() will fail with UnauthorizedAccessException if that directory or any of its subdirectories contains a file that is read-only.

One solution is to remove the read-only attribute from all files. You can do so while recursively deleting directories. This approach is mentioned in some blogs and it looks as follows:

public static void RecursivelyDeleteDirectory(
                   DirectoryInfo currentDirectory) {
   try {
      currentDirectory.Attributes = FileAttributes.Normal;
      foreach (var childDirectory in 
                        currentDirectory.GetDirectories()) {
         RecursivelyDeleteDirectory(childDirectory);
      }

      foreach (var file in currentDirectory.GetFiles()) {
         file.IsReadOnly = false;
      }

      currentDirectory.Delete(true);
   }
   catch (Exception ex) {
      Console.WriteLine(ex); // Better option: Use log4net
   }
}

While this works some people do not like recursion. So here is an option for how the same can be achieved without recursion:

public static void DeleteDirectory(
                   DirectoryInfo currentDirectory) {
   try {
      foreach (var file in currentDirectory.GetFiles(
               "*", SearchOption.AllDirectories)) {
         file.IsReadOnly = false;
      }
      currentDirectory.Delete(true);
   }
   catch (Exception ex) {
      Console.WriteLine(ex); // Better option: Use log4net
   }
}

Please note that these implementations report exceptions at the console. A better option would be to use a standard logging framework like log4net.