Writing CObjects with Serialization to CArchive

Hi,
I wanted to write a simple data structure to a file for a client application. This is for demo
purpose and so I did not want to write a whole lot of code or spend my time on the storage as
the final version, the BiometricRecord Data will be stored to a database. Anyway I've spent too
much of my time already to give up :-) so if any of you have a suggestion on how to fix the
reading the data back from the file to the archive, it would be a great help ! :D.


I am able to write my data to the archive, but I am unable to read from it, or I read blank info ?
As the record count is always right while reading of files but it never reads the record and
throws some exception, plus I don't have the debug version of some support files so in release
mode its impossible to track down problems.


Thanks for taking the time :)


Best Regards
Ruben Gerad Mathew.

Code:

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BIOMETRICRECORD.H
==========================

#pragma once
#include "afx.h"

class BiometricRecord :        public CObject
{
public:
        long m_ID;
        CString m_FirstName;
        CString m_MiddleName;
        CString m_LastName;
        long m_Day;
        long m_Month;
        long m_Year;
        bool m_Gender;
        CString m_Address;
        CString m_Report;
        CString m_BiometricFile;
        CString m_ImageFile;
       

        DECLARE_SERIAL( BiometricRecord );
        BiometricRecord(void);
        ~BiometricRecord(void);
        BiometricRecord(int ID, CString FirstName, CString MiddleName, CString LastName, long Day, long Month, long Year, bool Gender, CString Address, CString Report, CString ImageFile, CString BiometricFile);
        void Serialize( CArchive& archive );
};


BIOMETRICORDREC.CPP
==========================

#include "stdafx.h"
#include "biometricrecord.h"
#include <windef.h>
#include <string>
#include <sstream>
#include <fstream>

IMPLEMENT_SERIAL( BiometricRecord, CObject, 0 );
BiometricRecord::BiometricRecord(int ID, CString FirstName, CString MiddleName, CString LastName, long dd, long mm, long yy, bool Gender, CString Address, CString Report, CString ImageFile, CString BiometricFile)
{
        m_ID = ID;
        m_FirstName=FirstName;
        m_MiddleName=MiddleName;
        m_LastName=LastName;
        m_Day = dd;
        m_Month = mm;
        m_Year = yy;
        m_Gender = Gender;
        m_Address=Address;
        m_Report=Report;
        m_ImageFile=ImageFile;
        m_BiometricFile=BiometricFile;
}


BiometricRecord::BiometricRecord(void)
{
}

BiometricRecord::~BiometricRecord(void)
{
        m_ID = 0;
        m_FirstName.ReleaseBuffer();
        m_MiddleName.ReleaseBuffer();
        m_LastName.ReleaseBuffer();
        m_Day = 0;
        m_Month = 0;
        m_Year = 0;
        m_Address.ReleaseBuffer();
        m_Report.ReleaseBuffer();
        m_ImageFile.ReleaseBuffer();
        m_BiometricFile.ReleaseBuffer();
}

void BiometricRecord::Serialize(CArchive& archive)
{
        CObject::Serialize(archive);

        if(archive.IsStoring())
                archive << m_ID << m_FirstName << m_MiddleName << m_LastName << m_Day << m_Month << m_Year << m_Gender << m_Address << m_Report << m_ImageFile << m_BiometricFile;
        else
                archive >> m_ID >> m_FirstName >> m_MiddleName >> m_LastName >> m_Day >> m_Month >> m_Year >> m_Gender >> m_Address >> m_Report >> m_ImageFile >> m_BiometricFile;
}


ENROLLMENT.CPP
==========================
#include "stdafx.h"
#include "Enrollment.h"
#include "BiometricRecord.h"
#include <afxtempl.h>
#include <windef.h>
#include <string>
#include <sstream>
#include <fstream>
#include <exception>

CFile bioFile;
CFileException fileException;
int nRecordID;

CArray<BiometricRecord*, BiometricRecord*> BiometricStore;
// CEnrollment dialog

IMPLEMENT_DYNAMIC(CEnrollment, CDialog)

CEnrollment::CEnrollment(CWnd* pParent /*=NULL*/)
        : CDialog(CEnrollment::IDD, pParent)
{
}

CEnrollment::~CEnrollment()
{       
        bioFile.Close();
        for(int i=0; i<BiometricStore.GetCount(); i++)
        {
                delete BiometricStore.GetAt(i);
                BiometricStore.RemoveAt(i);       
        }
}

BOOL CEnrollment::OnInitDialog()
{
        CDialog::OnInitDialog();
        try
        {
        CString dbBiometric;
        BiometricRecord *record;
        nRecordID=1;

        char bufPath[400];
        ::GetModuleFileName(AfxGetApp()->m_hInstance, bufPath, sizeof(bufPath));

        dbBiometric.SetString(bufPath);               
        dbBiometric.Trim();               
        dbBiometric.Replace("Enroll.exe", "BiometricDB.rdb");  // We open the Biometric.rdb to store the Biometric Record Contents
        if ( !bioFile.Open( dbBiometric, CFile::modeCreate | CFile::modeReadWrite | CFile::modeNoTruncate, &fileException ) )
        {
                TRACE( "Can't Open Biometric Database: %s, Error = %u\n", pszFileName, fileException.m_cause );
        }       
       
        CArchive ar(&bioFile, CArchive::load);               
        //while((record = (BiometricRecord*)ar.ReadObject(RUNTIME_CLASS(BiometricRecord))!=NULL)
        //while(bioFile.GetPosition()!=bioFile.end) //ERR MSG An attempt was made to access an unnamed file past its end ?       
                        bool readFile(true);
                while(readFile)
                {
                        CArchive ar(&flBio, CArchive::load);       
                        m_pResult.AddString("Reading Record...");
                        record = (BiometricRecord*)ar.ReadObject(RUNTIME_CLASS(BiometricRecord));
                        if(record==NULL)
                                readFile=false;
                       
                        CString msg;
                        BiometricRecord rec(record->m_ID, record->m_FirstName, record->m_MiddleName, record->m_LastName, record->m_Day, record->m_Month, record->m_Year, record->m_Gender, record->m_Address, record->m_Report, record->m_ImageFile, record->m_BiometricFile);
                        msg.Format("Reading Record %d [%d, %s %s %s]",RecordID, record->m_ID, record->m_FirstName, record->m_MiddleName, record->m_LastName);
                        BiometricDB.Add(&rec);                       
                        RecordID++;
                        m_pResult.AddString(msg);
                        ar.Close();
                }
        }catch(...)
        {
                //ERR MSG An attempt was made to access an unnamed file past its end ?  This error could be the possible cause of the failed read attempts.

        }
        //delete record;
        return TRUE;  // return TRUE  unless you set the focus to a control
}

void CEnrollment::OnBnClickedOk()
{
        bioFile.SeekToEnd();
        CArchive ar(&bioFile, CArchive::store);
        CString strID, firstName, middleName, lastName, dd, mm, yy, address, report, biometricFile, imageFile;
        GetDlgItem(IDC_ID)->GetWindowText(strID);
        GetDlgItem(IDC_FIRST_NAME)->GetWindowText(firstName);
        GetDlgItem(IDC_MIDDLE_NAME)->GetWindowText(middleName);
        GetDlgItem(IDC_LAST_NAME)->GetWindowText(lastName);
        GetDlgItem(IDC_DD)->GetWindowText(dd);
        GetDlgItem(IDC_MM)->GetWindowText(mm);
        GetDlgItem(IDC_YY)->GetWindowText(yy);
        GetDlgItem(IDC_IMAGE_FILE)->GetWindowText(imageFile);
        GetDlgItem(IDC_BIOMETRIC_FILE)->GetWindowText(biometricFile);
        GetDlgItem(IDC_ADDRESS)->GetWindowText(address);
        GetDlgItem(IDC_REPORT)->GetWindowText(report);

        bool bGen = ((CButton*)GetDlgItem(IDC_MALE))->GetCheck()?true:false;
        BiometricRecord *bioRec = new BiometricRecord(_ttoi(strID), firstName, middleName, lastName, _ttol(dd), _ttol(mm), _ttol(yy), bGen, address, report, imageFile, biometricFile);
        BiometricStore.Add(bioRec);
        ar.WriteObject(bioRec); //Writes contents to file successfully !
        ar.Close();
        nRecordID++;       

        AfxMessageBox("Record Added to Database !");
        DisableEnrollment();       

        //delete bioRec;
        OnOK();
}

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