private void BtnNuevo_Click(object sender, EventArgs e)
        {
            MaestrosModal maestrosModal = new MaestrosModal();

            maestrosModal.ShowDialog();
            BuscarMaestro("");
        }
        private void DgvAlumnos_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            BindingMaestro();
            MaestrosModal maestrosModal = new MaestrosModal();

            maestrosModal.ShowDialog();
            BuscarMaestro("");
        }