private void Lista_ItemSelected(object sender, SelectedItemChangedEventArgs e)
        {
            try
            {
                if (e.SelectedItem == null)
                {
                    return;
                }

                var itemGrid = e.SelectedItem as VeiculoModel;
                if (itemGrid == null)
                {
                    return;
                }

                frmVeiculoCad frm = new frmVeiculoCad(itemGrid);
                frm.Disappearing += frmVeiculoCad_Disappearing;
                Navigation.PushAsync(frm, true);
                grdVeiculos.SelectedItem = null;
            }
            catch (Exception ex)
            {
                DisplayAlert("Error", ex.Message + "\n\nTente novamente!", "OK");
                grdVeiculos.SelectedItem = null;
            }
            finally { }
        }
 private void BtnNovo_Clicked(object sender, EventArgs e)
 {
     try
     {
         frmVeiculoCad frm = new frmVeiculoCad();
         frm.Disappearing += frmVeiculoCad_Disappearing;
         Navigation.PushAsync(frm, true);
     }
     catch (Exception ex)
     {
         DisplayAlert("Error", ex.Message + "\n\nTente novamente!", "OK");
     }
     finally { }
 }