mdifriendsview.cpp

< Visual C++数据库经典开发实例精解>>的实例源码

// MDIFriendsView.cpp : implementation of the CMDIFriendsView class
//

#include "stdafx.h"
#include "MDIFriends.h"

#include "MDIFriendsSet.h"
#include "MDIFriendsDoc.h"
#include "MDIFriendsView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMDIFriendsView

IMPLEMENT_DYNCREATE(CMDIFriendsView, CDaoRecordView)

BEGIN_MESSAGE_MAP(CMDIFriendsView, CDaoRecordView)
	//{{AFX_MSG_MAP(CMDIFriendsView)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CDaoRecordView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CDaoRecordView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CDaoRecordView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMDIFriendsView construction/destruction

CMDIFriendsView::CMDIFriendsView()
	: CDaoRecordView(CMDIFriendsView::IDD)
{
	//{{AFX_DATA_INIT(CMDIFriendsView)
	m_pSet = NULL;
	m_recordnews = _T("");
	recno=0;
	reccount=0;
	//}}AFX_DATA_INIT
	// TODO: add construction code here

}

CMDIFriendsView::~CMDIFriendsView()
{
}

void CMDIFriendsView::DoDataExchange(CDataExchange* pDX)
{
	CDaoRecordView::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMDIFriendsView)
	DDX_FieldText(pDX, IDC_EDIT_NAME, m_pSet->m_name, m_pSet);
	DDX_FieldText(pDX, IDC_EDIT_MEMO, m_pSet->m_memo, m_pSet);
	DDX_FieldText(pDX, IDC_EDIT_HOME, m_pSet->m_home, m_pSet);
	DDX_FieldText(pDX, IDC_EDIT_EMAIL, m_pSet->m_email, m_pSet);
	DDX_FieldText(pDX, IDC_EDIT_BIRTH, m_pSet->m_birth, m_pSet);
	DDX_FieldText(pDX, IDC_EDIT_PHONE, m_pSet->m_phone, m_pSet);
	DDX_FieldText(pDX, IDC_EDIT_SEX, m_pSet->m_sex, m_pSet);
	DDX_Text(pDX, IDC_EDIT_RECORD, m_recordnews);
	//}}AFX_DATA_MAP
}

BOOL CMDIFriendsView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CDaoRecordView::PreCreateWindow(cs);
}

void CMDIFriendsView::OnInitialUpdate()
{
	m_pSet = &GetDocument()->m_mDIFriendsSet;
	CDaoRecordView::OnInitialUpdate();
	ResizeParentToFit();
	if(!m_pSet->IsOpen())
		m_pSet->Open();
	if(!m_pSet->IsEOF())
	{
		while(!m_pSet->IsEOF())
			m_pSet->MoveNext();
		m_pSet->MoveFirst();
		recno=1;
		reccount=m_pSet->GetRecordCount();
		m_recordnews.Format("记录号：%d   记录总数：%d",recno,reccount);
		UpdateData(false);
	}
}

/////////////////////////////////////////////////////////////////////////////
// CMDIFriendsView printing

BOOL CMDIFriendsView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CMDIFriendsView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CMDIFriendsView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CMDIFriendsView diagnostics

#ifdef _DEBUG
void CMDIFriendsView::AssertValid() const
{
	CDaoRecordView::AssertValid();
}

void CMDIFriendsView::Dump(CDumpContext& dc) const
{
	CDaoRecordView::Dump(dc);
}

CMDIFriendsDoc* CMDIFriendsView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMDIFriendsDoc)));
	return (CMDIFriendsDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMDIFriendsView database support
CDaoRecordset* CMDIFriendsView::OnGetRecordset()
{
	return m_pSet;
}


/////////////////////////////////////////////////////////////////////////////
// CMDIFriendsView message handlers

BOOL CMDIFriendsView::OnMove(UINT nIDMoveCommand) 
{
	switch (nIDMoveCommand/*记录指针移动命令消息ID*/)
	{
    case ID_RECORD_PREV://向前移动记录指针        
		if(!(recno==1))			
			recno--;		//使记录号减1
		break;
    case ID_RECORD_FIRST://使指针指向第一条记录        
		recno=1;//使记录号为1
        break;
    case ID_RECORD_NEXT://向后移动记录指针
        if(!(recno==m_pSet->GetRecordCount()))		
			recno++;//记录号加1
		break;        
     case ID_RECORD_LAST: //使指针指向最后一条记录       
		recno=m_pSet->GetRecordCount();//使记录号等于记录数
        break;
    default:        
        ASSERT(false);		//若发生其他情况，则终止程序运行
    }
	reccount=m_pSet->GetRecordCount();
	m_recordnews.Format("记录号：%d   记录总数：%d",recno,reccount);
	UpdateData(false);
	return CDaoRecordView::OnMove(nIDMoveCommand);
}