private void ButtonAgregar_Click(object sender, RoutedEventArgs e)
        {
            this.Close();
            var _window = new TrainerImput(null);

            _window.Show();
        }
        private void Button_Modificar(object sender, RoutedEventArgs e)
        {
            TrainerModel _trainer = DataGridTrainer.SelectedItem as TrainerModel;

            if (_trainer != null)
            {
                int?id = _trainer.Id;
                this.Close();
                var _window = new TrainerImput(id);
                _window.Show();
            }
            else
            {
                GRDialogInformation _msg = new GRDialogInformation();
                _msg.Message = "Debe Seleccionar un Registro";
                _msg.ShowDialog();
            }
        }