async private void DeleteTour(object sender, EventArgs e)
        {
            DialogResult result1 = MessageBox.Show(Constants.DeleteTourConfirmation1
                                                   + tourAsociado.name + Constants.DeleteTourConfirmation2,
                                                   Constants.DeleteTourTitle,
                                                   MessageBoxButtons.YesNo);

            if (result1 == DialogResult.Yes)
            {
                var tourController = new TourController();
                var result         = await tourController.DeleteTourAsync(this.tourAsociado._id);

                Constants.tours = tourController.GetAllToursAsync().Result;
                this.Hide();
                MenuForm2 parent = this.Parent as MenuForm2;
                parent.ArrangeCardGrid();
            }
        }