rentdvddlg.cpp

该系统是一个集数据库操作与数据集显示的单机系统

// RentDVDDlg.cpp : implementation file
//

#include "stdafx.h"
#include "RentDVD.h"
#include "RentDVDDlg.h"
#include "DVDRentDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();
	
	// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA
	
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL
	
	// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CRentDVDDlg dialog

CRentDVDDlg::CRentDVDDlg(CWnd* pParent /*=NULL*/)
: CDialog(CRentDVDDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CRentDVDDlg)
	m_check_Date = FALSE;
	m_Name = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CRentDVDDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CRentDVDDlg)
	DDX_Control(pDX, IDC_LIST_RENT, m_listctl_RentInfo);
	DDX_Control(pDX, IDC_EDIT_NAME, m_edit_Name);
	DDX_Control(pDX, IDC_DATETIMEPICKER_TO, m_dateTimerPicker_To);
	DDX_Control(pDX, IDC_DATETIMEPICKER_FROM, m_dateTimerPicker_From);
	DDX_Control(pDX, IDC_COMBO_DVD, m_comboDVD);
	DDX_Check(pDX, IDC_CHECK_DATE, m_check_Date);
	DDX_Text(pDX, IDC_EDIT_NAME, m_Name);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CRentDVDDlg, CDialog)
//{{AFX_MSG_MAP(CRentDVDDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_CHECK_DATE, OnCheckDate)
ON_BN_CLICKED(IDC_BUTTON_RENT, OnButtonRent)
ON_BN_CLICKED(IDC_BUTTON_QUERY, OnButtonQuery)
	ON_BN_CLICKED(IDC_BUTTON_DELE, OnButtonDele)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CRentDVDDlg message handlers

BOOL CRentDVDDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	
	// Add "About..." menu item to system menu.
	
	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);
	
	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}
	
	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	m_listctl_RentInfo.InsertColumn(0,"ID",LVCFMT_LEFT,60,-1);
	m_listctl_RentInfo.InsertColumn(1,"租借人",LVCFMT_LEFT,80,-1);
	m_listctl_RentInfo.InsertColumn(2,"租借DVD名",LVCFMT_LEFT,130,-1);
	m_listctl_RentInfo.InsertColumn(3,"租借日期",LVCFMT_LEFT,120,-1);
	m_listctl_RentInfo.SetExtendedStyle(LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES);
	
	m_dateTimerPicker_From.SetFormat("yyyyMMdd");
	m_dateTimerPicker_To.SetFormat("yyyyMMdd");
	
	m_check_Date=FALSE;
	m_dateTimerPicker_From.EnableWindow(FALSE);
	m_dateTimerPicker_To.EnableWindow(FALSE);
	
	HRESULT hr;
	try
	{
		hr=m_pConnection.CreateInstance(__uuidof(Connection));
		if(SUCCEEDED(hr))
		{
			m_pConnection->ConnectionString="File Name=my_data1.udl";
			m_pConnection->ConnectionTimeout=20;
			hr=m_pConnection->Open("","","",adConnectUnspecified);
			if(FAILED(hr))
			{
				AfxMessageBox("Open connection failed!");
				return TRUE;
			}
		}
		else
		{
			AfxMessageBox("Create Connection failed!");
			return TRUE;
		}
	}
	catch(_com_error e)
	{
		_bstr_t bstrSourse(e.Source());
		_bstr_t bstrDescription(e.Description());
		AfxMessageBox(bstrSourse+bstrDescription);
		return TRUE;
	}
	
	InitListCtr();
	InitComboCtr();
	
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CRentDVDDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CRentDVDDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting
		
		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
		
		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;
		
		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CRentDVDDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CRentDVDDlg::OnCheckDate() 
{
	// TODO: Add your control notification handler code here
	if(m_check_Date==FALSE)
	{
		m_check_Date=TRUE;
		m_dateTimerPicker_From.EnableWindow(TRUE);
		m_dateTimerPicker_To.EnableWindow(TRUE);
	}
	
	else
	{
		m_check_Date=FALSE;
		m_dateTimerPicker_From.EnableWindow(FALSE);
		m_dateTimerPicker_To.EnableWindow(FALSE);
	}
	
}

void CRentDVDDlg::OnButtonRent() 
{
	// TODO: Add your control notification handler code here
	CDVDRentDlg DVDRentDlg;
	if(DVDRentDlg.DoModal()==IDOK)
		UpdateList();
	
}
void CRentDVDDlg::InitListCtr()
{
	HRESULT hr;
	_RecordsetPtr pRentRecordset;
	hr=pRentRecordset.CreateInstance(__uuidof(Recordset));
	
	if(FAILED(hr))
	{
		AfxMessageBox("create instance of Recordset failed!");
		return ;
	}
	
	CString strSql;
	_variant_t var;
	CString strValue;
	int curItem=0;
	strSql="SELECT * FROM tbRentInfo";
	try
	{
		hr=pRentRecordset->Open(_variant_t (strSql),
			m_pConnection.GetInterfacePtr(),
			adOpenDynamic,
			adLockOptimistic,
			adCmdText);
		if(SUCCEEDED(hr))
		{
			while(!pRentRecordset->ADOEOF)
			{
				var = pRentRecordset->GetCollect((long) 0);
				if(var.vt != VT_NULL)
					strValue = (LPCSTR) _bstr_t(var);
				m_listctl_RentInfo.InsertItem(curItem,strValue);
				var = pRentRecordset->GetCollect("Name");
				if(var.vt != VT_NULL)
					strValue = (LPCSTR) _bstr_t(var);
				m_listctl_RentInfo.SetItemText(curItem,1,strValue);
				var = pRentRecordset->GetCollect("DVDID");
				if(var.vt != VT_NULL)
					strValue = (LPCSTR) _bstr_t(var);
				m_listctl_RentInfo.SetItemText(curItem,2,QueryDVDName(strValue));
				var = pRentRecordset->GetCollect("Date");
				if(var.vt != VT_NULL)
					strValue = (LPCSTR) _bstr_t(var);
				m_listctl_RentInfo.SetItemText(curItem,3,strValue);
				pRentRecordset->MoveNext();
				curItem++;
			}
		}
		else 
		{
			AfxMessageBox("Open recordset fail!");
		}
	}
	catch(_com_error *e)
	{
		AfxMessageBox(e->ErrorMessage());
		return ;
	}
	
	pRentRecordset->Close();
	pRentRecordset=NULL;
}

void CRentDVDDlg::UpdateList()
{
	m_listctl_RentInfo.DeleteAllItems();
	InitListCtr();
	
}

CString CRentDVDDlg::QueryDVDName(CString DVDID)
{
	_RecordsetPtr pDVDNameRecordset;
	pDVDNameRecordset.CreateInstance(__uuidof(Recordset));
	CString strValue;