cclasss.cpp

一个很好的VC源代码

// CClass.cpp : implementation file
//

#include "stdafx.h"
#include "aoManage.h"
#include "CClassS.h"
#include "MainFrm.h"

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

/////////////////////////////////////////////////////////////////////////////
// CCClassS dialog


CCClassS::CCClassS(CWnd* pParent /*=NULL*/)
	: CParentDlg(CCClassS::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCClassS)
	m_strCode = _T("");
	m_strName = _T("");
	//}}AFX_DATA_INIT
	m_pCClass=new CDaoRecordset(&((CMainFrame*)AfxGetMainWnd())->m_db);
}


void CCClassS::DoDataExchange(CDataExchange* pDX)
{
	CParentDlg::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCClassS)
	DDX_Text(pDX, IDC_EDIT1, m_strCode);
	DDV_MaxChars(pDX, m_strCode, 2);
	DDX_Text(pDX, IDC_EDIT2, m_strName);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CCClassS, CParentDlg)
	//{{AFX_MSG_MAP(CCClassS)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_WM_CLOSE()
	ON_BN_CLICKED(IDC_BUTTON5, OnButton5)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCClassS message handlers

BOOL CCClassS::OnInitDialog() 
{
	CParentDlg::OnInitDialog();
	
	m_pCClass->Open(AFX_DAO_USE_DEFAULT_TYPE,"select * from cclass");
	if (m_pCClass->FindFirst("code='"+m_strCode+"'"))
	{
		COleVariant vVal;
		m_pCClass->GetFieldValue("name",vVal);
		m_strName=(LPCTSTR)vVal.bstrVal;
	}
	UpdateData(FALSE);
	m_strCodeOld=m_strCode;
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CCClassS::OnButton1() 
{
	if (MessageBox("确实要修改吗?",NULL,MB_OKCANCEL)==IDCANCEL)
		return;
	UpdateData(TRUE);
	if (!m_strCode.GetLength()||!m_strName.GetLength())
	{
		MessageBox("分类号和名称不能为空");
		return;
	}
	if (strcmp(m_strCode,m_strCodeOld))
	{
		if (m_pCClass->FindFirst("code='"+m_strCode+"'"))
		{
			MessageBox("分类号已存在，请选择另外未注册的");
			return;
		}
		else
			m_pCClass->FindFirst("code='"+m_strCodeOld+"'");
	}
	m_pCClass->Edit();
	m_pCClass->SetFieldValue("code",(LPCTSTR)m_strCode);
	m_pCClass->SetFieldValue("name",(LPCTSTR)m_strName);
	m_pCClass->Update();
	MessageBox("已成功修改");
	OnOK();
}

void CCClassS::OnButton2() 
{
	OnCancel();
}

void CCClassS::OnClose() 
{
	if (m_pCClass->IsOpen())
		m_pCClass->Close();
	CParentDlg::OnClose();
}


void CCClassS::OnButton5() 
{
	if (MessageBox("确实要删除吗?","",MB_OKCANCEL)==IDOK)
	{
		m_pCClass->Delete();
		MessageBox("记录已删除");
		OnOK();
	}
}