private void OnRemoveSelected(FileSelectorItemViewModel obj)
 {
     if (obj != null)
     {
         Files.Remove(obj);
     }
 }
 private bool CanRemoveSelected(FileSelectorItemViewModel arg)
 {
     return(arg != null);
 }
 private bool CanGetInfo(FileSelectorItemViewModel arg)
 {
     return(arg != null &&
            !string.IsNullOrEmpty(Settings.Default.FFmpegPath) &&
            System.IO.File.Exists(Settings.Default.FFmpegPath));
 }