serialize在基于对话框的程序里总是出错，运行到ar.IsStoring是出现异常。

[zjunlucky]

我满足了serialize的五个要求，但是在运行到ar.IsStoring是出现异常：(MFC42D.DLL): 0xC0000005: Access Violation.百思不得其解，请高手指教。

[nonocast]

发一分给我看看
[e-mail]

[jawibn]

有没有野指针?

[小李匪盗]

再仔细看看，是不是真的满足要求了？

[zjunlucky]

#if !defined(AFX_SETUPDLG_H__D9E431A6_CAE3_4AAB_9324_44C466D5FF80__INCLUDED_)
#define AFX_SETUPDLG_H__D9E431A6_CAE3_4AAB_9324_44C466D5FF80__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// SetupDLG.h : header file
// SetupDLG dialog

class SetupDLG : public CDialog
{
DECLARE_SERIAL(SetupDLG)
// Construction
public:
SetupDLG(CWnd* pParent = NULL); // standard constructor

// Dialog Data
//{{AFX_DATA(SetupDLG)
enum { IDD = IDD_DIALOG1 };
CString m_server;
CString m_account;
CString m_password;
CArchive* myar;
// NOTE: the ClassWizard will add data members here
//}}AFX_DATA

// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(SetupDLG)
public:
virtual void Serialize(CArchive& ar);
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL

// Implementation
protected:

// Generated message map functions
//{{AFX_MSG(SetupDLG)
virtual void OnOK();
virtual BOOL OnInitDialog();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_SETUPDLG_H__D9E431A6_CAE3_4AAB_9324_44C466D5FF80__INCLUDED_)

// SetupDLG.cpp : implementation file
//

#include "stdafx.h"
#include "sendemail.h"
#include "SetupDLG.h"
#include "sendemailDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// SetupDLG dialog

IMPLEMENT_SERIAL(SetupDLG,CDialog,0)

SetupDLG::SetupDLG(CWnd* pParent /*=NULL*/)
: CDialog(SetupDLG::IDD, pParent)
{
m_account=_T("");
m_password=_T("");
m_server=_T("");
//{{AFX_DATA_INIT(SetupDLG)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
}


void SetupDLG::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(SetupDLG)
DDX_Text(pDX, IDC_SERVER, m_server);
DDX_Text(pDX, IDC_ACCOUNT, m_account);
DDX_Text(pDX, IDC_PASSWORD, m_password);
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(SetupDLG, CDialog)
//{{AFX_MSG_MAP(SetupDLG)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// SetupDLG message handlers
BOOL SetupDLG::OnInitDialog()
{

CDialog::OnInitDialog();
//m_server=GetProfileString((LPCTSTR)"SMTPInfo",(LPCTSTR)"Servername");
char servername[100];
GetProfileString("SMTPInfo","Servername","",servername,100);
m_server=servername;
UpdateData(FALSE);
Serialize(*myar);
//MessageBox(m_server);
// TODO: Add extra initialization here

return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}

void SetupDLG::OnOK()
{
// TODO: Add extra validation here
// Save the Email server,account and password to registry table
UpdateData(TRUE);
WriteProfileString("SMTPInfo","Servername",m_server);
Serialize(*myar);

//MessageBox(m_server);
CDialog::OnOK();
}



void SetupDLG::Serialize(CArchive& ar)
{
//CObject::Serialize(ar);
if (ar.IsLoading())
{ // storing code
ar<<m_server;
ar<<m_account;
ar<<m_password;
}
else
{ // loading code
ar>>m_server;
ar>>m_account;
ar>>m_password;
}

}

[alvachien]

//CObject::Serialize(ar);
=>
CObject::Serialize(ar);

[zjunlucky]

to alvachien(苦心人)
这样也不行，其实CObject::Serialize(ar)是空的，加与不加是一样的。

[zhangcrony]

不懂﹐但幫你UP一下﹗﹗

[金庆]

先要如下实例化一个 *myar， 才可以用 Serialize(*myar).

CFile theFile;
theFile.Open(..., CFile::modeWrite);
CArchive archive(&theFile, CArchive::store);

详请搜MSDN"Two ways to create a CArchive"

[ficher]

不需要 *myar 只要临时CArchive 变量.如下调试通过
BOOL SetupDLG::OnInitDialog()
{

CDialog::OnInitDialog();
//m_server=GetProfileString((LPCTSTR)"SMTPInfo",(LPCTSTR)"Servername");
char servername[100];
GetProfileString("SMTPInfo","Servername","",servername,100);
m_server=servername;

UpdateData(FALSE);
CFile file;
file.Open("abc.txt",CFile::modeReadWrite|CFile::modeCreate|CFile::shareExclusive);
CArchive writeArchive(&file,CArchive::store|CArchive::bNoFlushOnDelete);
Serialize(writeArchive);
writeArchive.Close();
file.Close();
return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}

[zjunlucky]

居然没人回帖，失望！

[zjunlucky]

多谢各位，尤其是 jq0123(金庆) 和 ficher(小鱼儿) ，大家接分吧！