insingledlg.cpp

同学编写的图书馆管理系统（数据库原理大作业）

// InSingleDlg.cpp : implementation file
//

#include "stdafx.h"
#include "LIBRARY.h"
#include "InSingleDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CInSingleDlg dialog


CInSingleDlg::CInSingleDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CInSingleDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CInSingleDlg)
	m_author = _T("");
	m_bookNum = _T("");
	m_category = _T("");
	m_number = _T("");
	m_press = _T("");
	m_price = _T("");
	m_title = _T("");
	m_year = _T("");
	//}}AFX_DATA_INIT
}


void CInSingleDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CInSingleDlg)
	DDX_Text(pDX, IDC_author, m_author);
	DDX_Text(pDX, IDC_bno, m_bookNum);
	DDX_Text(pDX, IDC_category, m_category);
	DDX_Text(pDX, IDC_numin, m_number);
	DDX_Text(pDX, IDC_press, m_press);
	DDX_Text(pDX, IDC_price, m_price);
	DDX_Text(pDX, IDC_title, m_title);
	DDX_Text(pDX, IDC_year, m_year);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CInSingleDlg, CDialog)
	//{{AFX_MSG_MAP(CInSingleDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CInSingleDlg message handlers

void CInSingleDlg::OnOK() 
{
	// TODO: Add extra validation here
	
	UpdateData();       //更新数据
	if (!m_bookSet.IsOpen())
	{
		m_bookSet.Open();
	}
    m_bookSet.m_strFilter.Format("bno = '%s'",m_bookNum);
    m_bookSet.Requery();

	if(m_bookSet.IsEOF())
	{
		if (m_bookNum=="" || m_title=="" || m_category=="" || m_year=="" 
			|| m_press=="" || m_author=="" || m_price=="" || m_number=="")
		{
			AfxMessageBox("入库失败，请检查是否输入有误。");	
			return;
		}
		m_bookSet.AddNew();
		m_bookSet.m_bno = m_bookNum;
		m_bookSet.m_title = m_title;
		m_bookSet.m_category = m_category;
		m_bookSet.m_year = atoi(m_year);
		m_bookSet.m_press = m_press;
		m_bookSet.m_author = m_author;
		m_bookSet.m_price = m_price;
		m_bookSet.m_totalnum = atoi(m_number);
		m_bookSet.m_stockednum = atoi(m_number);
		m_bookSet.Update();
		m_bookSet.Requery();	
	}
	else
	{
		if (m_number=="")
		{
			AfxMessageBox("入库失败，请检查是否输入有误。");	
			return;
		}
		m_bookSet.Edit();
        m_bookSet.m_totalnum = m_bookSet.m_totalnum + atoi(m_number);
		m_bookSet.m_stockednum = m_bookSet.m_stockednum + atoi(m_number);
        m_bookSet.Update();
		m_bookSet.Requery();
	}
	AfxMessageBox("该图书已成功入库。");
	CDialog::OnOK();
}