private void BtnNuevo_Click(object sender, EventArgs e)
        {
            frmABMClientes ABMCl = new frmABMClientes();

            ABMCl.FormClosing += frmABMClientes_FormClosing;
            ABMCl.Show();
            this.Hide();
        }
        private void BtnDetalle_Click(object sender, EventArgs e)
        {
            Cliente        selected = (Cliente)this.dataGridClientes.CurrentRow.DataBoundItem;
            frmABMClientes frABMCl  = new frmABMClientes();

            frABMCl.SeleccionarCliente(frmABMClientes.FormMode.details, selected);
            frABMCl.FormClosing += frmABMClientes_FormClosing;
            frABMCl.Show();
            this.Hide();
        }