//Hiennv
 private void txtTaxNumberCode_Leave(object sender, EventArgs e)
 {
     try
     {
         CompaniesBO aCompaniesBO = new CompaniesBO();
         Companies aCompanies = aCompaniesBO.Select_ByID(this.aPaymentHallsEN.IDCompany);
         if (aCompanies != null)
         {
             aCompanies.TaxNumberCode = txtTaxNumberCode.Text;
             aCompaniesBO.Update(aCompanies);
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show("frmTsk_PaymentHall.txtTaxNumberCode_Leave\n" + ex.ToString(), "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }