求助

[songyongzhen]

怎么实现删除功能.下面是我的部分代码// Search.cpp : implementation file
//

#include "stdafx.h"
#include "test.h"
#include "Search.h"

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

/////////////////////////////////////////////////////////////////////////////
// CSearch dialog


CSearch::CSearch(CWnd* pParent /*=NULL*/)
: CDialog(CSearch::IDD, pParent)
{
//{{AFX_DATA_INIT(CSearch)
m_EDIT_CX = _T("");
//}}AFX_DATA_INIT
}


void CSearch::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CSearch)
DDX_Control(pDX, IDOK, m_OK);
DDX_Control(pDX, IDCANCEL, m_DJ);
DDX_Text(pDX, IDC_EDIT1, m_EDIT_CX);
DDV_MaxChars(pDX, m_EDIT_CX, 20);
//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CSearch, CDialog)
//{{AFX_MSG_MAP(CSearch)
ON_BN_CLICKED(IDOK, OnOKSearch)
ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSearch message handlers

void CSearch::OnOKSearch()
{

//GetDlgItem(IDC_EDIT_XH)->EnableWindow(true);
//GetDlgItem(IDC_EDIT_XM)->EnableWindow(false);
//GetDlgItem(IDC_EDIT_XB)->EnableWindow(false);
//GetDlgItem(IDC_EDIT_lf)->EnableWindow(false);
//GetDlgItem(IDC_BUTTON_SET)->EnableWindow(TRUE);
UpdateData(true);
if(m_EDIT_CX.IsEmpty())
{MessageBox("不能够为空!");
return;
}

CDialog::OnCancel();

}

void CSearch::OnChangeEdit1()
{
// TODO: If this is a RICHEDIT control, the control will not
// send this notification unless you override the CDialog::OnInitDialog()
// function and call CRichEditCtrl().SetEventMask()
// with the ENM_CHANGE flag ORed into the mask.

// TODO: Add your control notification handler code her
}

void CSearch::OnCancel()
{
// TODO: Add extra cleanup here

CDialog::OnCancel();
}