userloaddlg.cpp

本程序是在学习期间编制的图书馆管理系统

// USERLoadDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "MyZone.h"
#include "USERLoadDlg.h"
#include ".\userloaddlg.h"
#include "MainDlg.h"


// USERLoadDlg 对话框

IMPLEMENT_DYNAMIC(USERLoadDlg, CDialog)
USERLoadDlg::USERLoadDlg(CWnd* pParent /*=NULL*/)
	: CDialog(USERLoadDlg::IDD, pParent)
	, m_userid(_T(""))
	, m_userpwd(_T(""))
{
}

USERLoadDlg::~USERLoadDlg()
{
}

void USERLoadDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Text(pDX, IDC_EDIT1, m_userid);
	DDX_Text(pDX, IDC_EDIT2, m_userpwd);
}


BEGIN_MESSAGE_MAP(USERLoadDlg, CDialog)
	ON_BN_CLICKED(IDC_BUTTON1, OnBnClickedButton1)
	ON_BN_CLICKED(IDCANCEL, OnBnClickedCancel)
END_MESSAGE_MAP()


// USERLoadDlg 消息处理程序

void USERLoadDlg::OnBnClickedButton1()
{
	// TODO: 在此添加控件通知处理程序代码
	
	OnOK();
	UpdateData(TRUE);
	CString m_apwd;
	if(m_userid==""||m_userpwd=="")
	{
		AfxMessageBox("用户名，密码不能为空");
		return;
	}
	else
	{
	try
	{
	theApp.m_pRecordset->Open(_variant_t("select Password from Reader where SID like \'" + m_userid + "\'"),
		theApp.m_pConnection.GetInterfacePtr(),
		adOpenDynamic,adLockOptimistic,adCmdText);
	if(!theApp.m_pRecordset->adoEOF)
	{
		m_apwd = theApp.m_pRecordset->GetCollect("Password");
		if(m_userpwd==m_apwd)
		{
			theApp.m_pRecordset->Close();
			theApp.m_Auserid = m_userid;
			MainDlg mdlg;
			mdlg.DoModal();
		}
		else
		{
			theApp.m_pRecordset->Close();
			AfxMessageBox("密码输入错误，请重新输入！"); 
			USERLoadDlg dlg;
			dlg.DoModal();
		}
	}
	else
	{
		theApp.m_pRecordset->Close();
		AfxMessageBox("用户名输入错误，请重新输入！"); 
		USERLoadDlg dlg;
		dlg.DoModal();
	}
	}
	catch(_com_error e){
	CString errormessage;
	errormessage.Format("数据库读者表项操作失败!\n%s",e.Description());
	MessageBox(e.Description());
	}
	}
}

void USERLoadDlg::OnBnClickedCancel()
{
	// TODO: 在此添加控件通知处理程序代码
	if(theApp.m_pRecordset->State)
		theApp.m_pRecordset->Close();
	OnCancel();
}