private bool CanExecuteFindPeliCommand() { try { bool ret = false; ret = (ret || (Peliculas != null && Peliculas.Any(p => p.IsSelectedItem))); ret = (ret || (Cinemas != null && Cinemas.Any(p => p.IsSelectedItem))); ret = (ret || (SessionTypes != null && SessionTypes.Any(p => p.IsSelectedItem))); return(true); } catch (Exception ex) { throw ex; } }