OpenIDE.UI.RunCommandForm.listDirectories C# (CSharp) Method

        private void listDirectories(string filter)
        {
            informationList.Items.Clear();
            Directory.GetDirectories(_lastDirectory)
                .Where(x => matchPath(filter, x)).ToList()
                .ForEach(x => getFileName(_lastDirectory, x, Path.DirectorySeparatorChar.ToString()));
            Directory.GetFiles(_lastDirectory)
                .Where(x => matchPath(filter, x)).ToList()
                .ForEach(x => getFileName(_lastDirectory, x, ""));
        }