public MntMercaderiaForm(ObservableListSource <MercaderiaViewModel> viewModelList)
 {
     InitializeComponent();
     ViewModel     = new MercaderiaViewModel();
     ViewModelList = viewModelList;
     CargarCombos();
     mercaderiaViewModelBindingSource.DataSource = ViewModel;
 }
 private void Aceptar()
 {
     try
     {
         if (mercaderiaViewModelBindingSource.Current == null)
         {
             throw new Exception("Debe de seleccionar al menos un registro");
         }
         _MercaderiaViewModel = (MercaderiaViewModel)mercaderiaViewModelBindingSource.Current;
         DialogResult         = DialogResult.OK;
     }
     catch (Exception ex)
     {
         MessageBox.Show(string.Format("Ocurrió un error al agregar, mensaje de error: {0}", ex.Message)
                         , "Agregar", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }