adodlg.cpp

ado控键的使用

// AdoDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Ado.h"
#include "AdoDlg.h"
#include "Columns.h"
#include "Column.h"
#include "COMDEF.H"
#include "EditDlg.h"
#include "_recordset.h"
#include "datagrid.h"
#include "Employees.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()

/////////////////////////////////////////////////////////////////////////////
// CAdoDlg dialog

CAdoDlg::CAdoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CAdoDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CAdoDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CAdoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAdoDlg)
	DDX_Control(pDX, IDC_DATAGRID1, m_datagrid);
	DDX_Control(pDX, IDC_ADODC1, m_adodc);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAdoDlg, CDialog)
	//{{AFX_MSG_MAP(CAdoDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ADD_BUTTON, OnAddButton)
	ON_BN_CLICKED(IDC_CLOSE_BUTTON, OnCloseButton)
	ON_BN_CLICKED(IDC_MODI_BUTTON, OnModiButton)
	ON_BN_CLICKED(IDC_DEL_BUTTON, OnDelButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAdoDlg message handlers

void CAdoDlg::RefreshData()
{
	//设置ADO Data控件的数据源
	m_adodc.SetRecordSource("SELECT Emp_id, Emp_name AS 员工姓名, Sex AS 性别, Title AS 职务, Wage AS 工资 FROM Employees");
	m_adodc.Refresh();
	//设置列宽度
	_variant_t vIndex;
	vIndex = long(0);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(0);
	vIndex = long(1);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(100);
	vIndex = long(2);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(80);
	vIndex = long(3);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(100);
	vIndex = long(4);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(90);
}

BOOL CAdoDlg::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
	RefreshData();

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CAdoDlg::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 CAdoDlg::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 CAdoDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CAdoDlg::OnAddButton() 
{
	// TODO: Add your control notification handler code here
	CEditDlg dlg;
	
	dlg.cEmpId = "";
	dlg.strSex = "男";
	if (dlg.DoModal() == IDOK)
		RefreshData();
}

void CAdoDlg::OnCloseButton() 
{
	// TODO: Add your control notification handler code here
	OnCancel();	
}

void CAdoDlg::OnModiButton() 
{
	// TODO: Add your control notification handler code here
	if (m_adodc.GetRecordset().GetEof() == 1) 
	{
		MessageBox("没有数据");
		return;
	}

	CEditDlg dlg;

	dlg.cEmpId = m_datagrid.GetItem(0);
	dlg.m_EmpName = m_datagrid.GetItem(1);
	dlg.strSex = m_datagrid.GetItem(2);
	dlg.m_Title = m_datagrid.GetItem(3);
	dlg.m_Wage = atof(m_datagrid.GetItem(4));

	if (dlg.DoModal() == IDOK)
		RefreshData();
}

void CAdoDlg::OnDelButton() 
{
	// TODO: Add your control notification handler code here
	if (m_adodc.GetRecordset().GetEof() == 1) 
	{
		MessageBox("请选择要删除的数据");
		return;
	}

	if (MessageBox("是否删除当前记录？","请确认", MB_YESNO) == IDYES)
	{
		CEmployees emp;
		emp.sql_delete(m_datagrid.GetItem(0));
		RefreshData();
	}
}