A duplicate insert block exists for class "COneValuDlg" in the source files

本文链接：https://blog.youkuaiyun.com/mangzhugou6283/article/details/54609451

作者在使用ClassWizard编辑MFC对话框类COneValueDlg和COneValueFloatDlg时遇到错误，提示存在重复插入块及找不到数据映射部分。问题涉及MFC框架、对话框资源和ClassWizard的使用。

我在打开ClassWizard后点击工程中的两个类COneValueDlg类和COneValueFloatDlg类时分别出现了以下两个问题：
A duplicate insert block exists for class "COneValuDlg" in the source files(...)
Cannot find the insert section "AFX_DATA_MAP" in file "...".ClassWizard cannot edit or import this class.
             源程序如下：
             "OneValueDlg.h"文件如下：
class COneValueDlg : public CDialog
{
public:
COneValueDlg(CWnd* pParent = NULL);   // standard constructor

//{{AFX_DATA(COneValueDlg)
enum { IDD = IDD_ONE_VALUE };
CSpinButtonCtrl m_ctrlSpinValue;
int m_nValue;
//}}AFX_DATA

  CString m_sCaption;
  CString m_sPrompt;
  int m_nMinVal;
  int m_nMaxVal;

protected:
//{{AFX_VIRTUAL(COneValueDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
//}}AFX_VIRTUAL

//{{AFX_MSG(COneValueDlg)
virtual BOOL OnInitDialog();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

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

//{{AFX_DATA(COneValueFloatDlg)
enum { IDD = IDD_ONE_VALUE_DOUBLE };
float m_Value;
//}}AFX_DATA

  CString m_sCaption;
  CString m_sPrompt;
  float m_MinVal;
  float m_MaxVal;

protected:
//{{AFX_VIRTUAL(COneValueFloatDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
//}}AFX_VIRTUAL

//{{AFX_MSG(COneValueFloatDlg)
virtual BOOL OnInitDialog();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

            "OneValueDlg.cpp"文件如下：
#include "stdafx.h"
#include "app.h"
#include "OneValueDlg.h"

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

COneValueDlg::COneValueDlg(CWnd* pParent /*=NULL*/)
: CDialog(COneValueDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(COneValueDlg)
m_nValue = 0;
//}}AFX_DATA_INIT
  m_nValue = 100;
  m_nMinVal = 0;
  m_nMaxVal = 500;
}

void COneValueDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(COneValueDlg)
DDX_Control(pDX, IDS_SPIN_VALUE, m_ctrlSpinValue);
DDX_Text(pDX, IDC_VALUE, m_nValue);
//}}AFX_DATA_MAP
  DDV_MinMaxInt(pDX, m_nValue, m_nMinVal, m_nMaxVal);
}

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

BOOL COneValueDlg::OnInitDialog()
{
CDialog::OnInitDialog();

SetWindowText(m_sCaption);
  GetDlgItem(IDC_PROMPT_VALUE)->SetWindowText(m_sPrompt);

  m_ctrlSpinValue.SetRange(m_nMinVal, m_nMaxVal);

return TRUE;
}

COneValueFloatDlg::COneValueFloatDlg(CWnd* pParent /*=NULL*/)
: CDialog(COneValueFloatDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(COneValueFloatDlg)
m_Value = 0;
//}}AFX_DATA_INIT
  m_Value = 1;
  m_MinVal = 0;
  m_MaxVal = 10;
}

void COneValueFloatDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(COneValueDlg)
DDX_Text(pDX, IDC_VALUE, m_Value);
//}}AFX_DATA_MAP
  DDV_MinMaxFloat(pDX, m_Value, m_MinVal, m_MaxVal);
}

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

BOOL COneValueFloatDlg::OnInitDialog()
{
CDialog::OnInitDialog();

SetWindowText(m_sCaption);
  GetDlgItem(IDC_PROMPT_VALUE)->SetWindowText(m_sPrompt);

return TRUE;
}

请问大侠们哪里出问题了啊？谢谢！！！！！！