public string GetSoundFileName() { var dlg = _fileDialogFactory.CreateOpenFileDialog(); dlg.DefaultExt = ".mp3"; dlg.Filter = "Audio Clip (.mp3)|*.mp3|(all)|*.*"; dlg.InitialDirectory = $@"{_fileIo.GetCurrentDirectory()}\Sounds"; var result = dlg.ShowDialog(); return(result != true ? null : dlg.FileName); }