public void Delete(DM_HinhThucThiInfo pDM_HinhThucThiInfo)
{
var client = new UnimOsServiceClient();
client.cDDM_HinhThucThi_Delete(GlobalVar.MaXacThuc, pDM_HinhThucThiInfo);
client.Close();
mErrorMessage = oDDM_HinhThucThi.ErrorMessages;
mErrorNumber = oDDM_HinhThucThi.ErrorNumber;
}