private void cmbMaSoKU_SelectedValueChanged(object sender, EventArgs e)
{
String s_MaSoKU = Convert.ToString(cmbMaSoKU.SelectedValue).Trim();
TKctrl.HienThiComboboxTheoMaKheuoc(numConLai, numDuocPhep, cmbSoTaiKhoan, cmbTKNo, s_MaSoKU);
}
