logindlg.cpp

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// LoginDlg.cpp : implementation file
//

#include "stdafx.h"
#include "StuManage.h"
#include "LoginDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CLoginDlg dialog


extern CStuManageApp theApp;

CLoginDlg::CLoginDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLoginDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLoginDlg)
	m_strLoginPwd = _T("");
	m_strLoginName = _T("");
	m_nLoginLevel = 0;
	//}}AFX_DATA_INIT
}


void CLoginDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLoginDlg)
	DDX_Text(pDX, IDC_EDIT_LOGIN_PWD, m_strLoginPwd);
	DDX_Text(pDX, IDC_EDIT_LOGIN_NAME, m_strLoginName);
	DDX_Radio(pDX, IDC_RADIO_STUDENT, m_nLoginLevel);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CLoginDlg, CDialog)
	//{{AFX_MSG_MAP(CLoginDlg)
	ON_BN_CLICKED(ID_LOGIN_BTN, OnLoginBtn)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLoginDlg message handlers

void CLoginDlg::OnLoginBtn() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	CString strname,strpwd;
	int nlevel;
	
	m_pRecordset_user.CreateInstance("ADODB.Recordset");
	m_pRecordset_user->Open("select * from SysUser",_variant_t((IDispatch *)theApp.m_pConnection,true),adOpenDynamic,adLockPessimistic,adCmdText);       	

	if(m_pRecordset_user->GetRecordCount() != 0)
	{
		while(!m_pRecordset_user->adoEOF)
		{	
			strname = m_pRecordset_user->GetCollect("NAME").bstrVal;
			strpwd = m_pRecordset_user->GetCollect("PASSWORD").bstrVal;
			nlevel = m_pRecordset_user->GetCollect("LEVEl").lVal;
			
			if(strname.CompareNoCase(m_strLoginName) == 0 && strpwd.CompareNoCase(m_strLoginPwd) == 0 && nlevel == m_nLoginLevel)
			{
				//记录权限
				theApp.m_Level = m_nLoginLevel;
				theApp.Loginstatus = true;
				MessageBox("登录系统","系统登录");
                
				CDialog::OnOK();
				return;
			}
			m_pRecordset_user->MoveNext();
		}
		MessageBox("用户名和密码错误","系统登录");
	}

}