chpri.cpp

一个很好的VC源代码

// ChPri.cpp : implementation file
//

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

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

/////////////////////////////////////////////////////////////////////////////
// CChPri dialog


CChPri::CChPri(CWnd* pParent /*=NULL*/)
	: CParentDlg(CChPri::IDD, pParent)
{
	//{{AFX_DATA_INIT(CChPri)
	m_strName = _T("");
	m_strOldPri = _T("");
	m_strNewPri=_T("");
	//}}AFX_DATA_INIT
	m_pUser=new CDaoRecordset(&((CMainFrame*)AfxGetMainWnd())->m_db);
}


void CChPri::DoDataExchange(CDataExchange* pDX)
{
	CParentDlg::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CChPri)
	DDX_Control(pDX, IDC_COMBO1, m_ctlCombo);
	DDX_Text(pDX, IDC_EDIT1, m_strName);
	DDX_Text(pDX, IDC_EDIT2, m_strOldPri);
	DDX_CBString(pDX, IDC_COMBO1, m_strNewPri);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CChPri, CParentDlg)
	//{{AFX_MSG_MAP(CChPri)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_EN_KILLFOCUS(IDC_EDIT1, OnKillfocusEdit1)
	ON_WM_CLOSE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CChPri message handlers

BOOL CChPri::OnInitDialog() 
{
	CParentDlg::OnInitDialog();
	
	m_pUser->Open(AFX_DAO_USE_DEFAULT_TYPE,"select * from user");
	m_ctlCombo.AddString("1");
	m_ctlCombo.AddString("2");
	m_ctlCombo.AddString("3");
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CChPri::OnButton1() 
{
	UpdateData(TRUE);
	if (!m_strName.GetLength())
	{
		MessageBox("用户名不能为空");
		return;
	}
	if (!m_strOldPri.GetLength())
	{
		MessageBox("此用户名不存在");
		return;
	}
	if (!m_strNewPri.GetLength())
	{
		MessageBox("请选择新权限");
		return;
	}
	m_pUser->Edit();
	m_pUser->SetFieldValue("priority",(LPCTSTR)m_strNewPri);
	m_pUser->Update();
	MessageBox("已成功更改");
	m_strName="";
	m_strOldPri="";
	UpdateData(FALSE);
	m_ctlCombo.SetCurSel(-1);
}

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

void CChPri::OnKillfocusEdit1() 
{
	UpdateData(TRUE);
	if (m_strName.GetLength())
	{
		if (m_pUser->FindFirst("name='"+m_strName+"'"))
		{
			COleVariant vVal;
			m_pUser->GetFieldValue("priority",vVal);
			m_strOldPri=(LPCTSTR)vVal.bstrVal;
		}
		else
			m_strOldPri="";
	}
	else
		m_strOldPri="";
	UpdateData(FALSE);
}

void CChPri::OnClose() 
{
	if (m_pUser->IsOpen())
		m_pUser->Close();
	CParentDlg::OnClose();
}