login.cpp

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// Login.cpp : implementation file
//

#include "stdafx.h"
#include "SuperMarket.h"
#include "Login.h"

#include "ProTypeManDlg.h"

#include "Manager.h"


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

/////////////////////////////////////////////////////////////////////////////
// CLogin dialog


CLogin::CLogin(CWnd* pParent /*=NULL*/)
	: CDialog(CLogin::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLogin)
	m_strName = _T("");
	m_strPwd = _T("");
	//}}AFX_DATA_INIT
}


void CLogin::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLogin)
	DDX_Text(pDX, IDC_EDIT1, m_strName);
	DDX_Text(pDX, IDC_EDIT2, m_strPwd);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CLogin, CDialog)
	//{{AFX_MSG_MAP(CLogin)
	ON_BN_CLICKED(IDC_BTNOK, OnBtnok)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLogin message handlers

BOOL CLogin::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	
	strPassword=_T("");
	strUsername=_T("");

	m_pRecordset.CreateInstance(__uuidof(Recordset));

     try
     {
            //从SQL数据库中打开Users表

		    m_pRecordset->Open("SELECT*FROM Users",
							   theApp.m_pConnection.GetInterfacePtr(),
							   adOpenDynamic,
							   adLockOptimistic,
							   adCmdText);
		//	 MessageBox("BBBBBBBBBBBBBBBBBBBBBB");
	   }
	   catch(_com_error*e)
	   {
		   AfxMessageBox(e->ErrorMessage());
	   }
    

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CLogin::OnBtnok() 
{
	// TODO: Add your control notification handler code here
    	_variant_t var;
		CString str1,str2;
		UpdateData(true);
		try
		{
			m_pRecordset->MoveFirst();
	

               var=m_pRecordset->GetCollect("UserName");
			   str1=(LPCSTR)_bstr_t(var);
			   strUsername=str1;
		
			   if(m_strName!=strUsername)
			   {
				   AfxMessageBox("你输入的用户名有误!");
				   
               }
			   else
			   {
               
                  var=m_pRecordset->GetCollect("Pwd");
			      str2=(LPCSTR)_bstr_t(var);
			      strPassword=str2;
          
			      if(m_strPwd!=strPassword)AfxMessageBox("你输入的密码有误!");
                  else 
				  {
				      
					  CDialog::OnOK();
					  CManager mymanager;
					  CString str="您是本超市管理系统的管理员\n\n";
					  str+="您的用户名是：    ";
					  str+=str1;
					  str+="\n\n您的密码是：      ";
					  str+=str2;
					  mymanager.m_strLabel=str;
                      mymanager.DoModal();

				  
				  }
			   }


              
			   UpdateData(false);
		
		}
		catch(_com_error*e)
		{
			AfxMessageBox(e->ErrorMessage());

		}

       
		

}