bookfind.cpp

图书管理系统,数据结构思想,用 C++编写,经测试,可用

// BookFind.cpp : implementation file
//

#include "stdafx.h"
#include "library.h"
#include "BookFind.h"

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

/////////////////////////////////////////////////////////////////////////////
// CBookFind dialog


CBookFind::CBookFind(CWnd* pParent /*=NULL*/)
	: CDialog(CBookFind::IDD, pParent)
{
	//{{AFX_DATA_INIT(CBookFind)
	m_Author = _T("");
	m_BookName = _T("");
	m_BookID = _T("");
	m_Press = _T("");
	m_Selection = -1;
	m_PublishTime = COleDateTime::GetCurrentTime();
	//}}AFX_DATA_INIT
}


void CBookFind::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBookFind)
	DDX_Control(pDX, IDC_COMBO2, m_Condition2);
	DDX_Control(pDX, IDC_COMBO1, m_Condition1);
	DDX_Text(pDX, IDC_AUTHOR, m_Author);
	DDX_Text(pDX, IDC_BOOK_NAME, m_BookName);
	DDX_Text(pDX, IDC_BOOKID, m_BookID);
	DDX_Text(pDX, IDC_PRESS, m_Press);
	DDX_Radio(pDX, IDC_RADIO1, m_Selection);
	DDX_DateTimeCtrl(pDX, IDC_PUBLISH_TIME, m_PublishTime);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CBookFind, CDialog)
	//{{AFX_MSG_MAP(CBookFind)
	ON_BN_CLICKED(IDC_FIND_BOOK, OnFindBook)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBookFind message handlers

BOOL CBookFind::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	//设置第一个单选按钮被选
	m_Selection=0;
	m_Condition1.SetCurSel(0);
	m_Condition2.SetCurSel(0);

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

void CBookFind::OnFindBook() 
{
	// TODO: Add your control notification handler code here
	//完成查找书的功能
	if(CheckValid())
		CDialog::OnOK();
	
}

BOOL CBookFind::CheckValid()
{
	//检查输入的合法性
	UpdateData();
	
	switch(m_Selection)
	{
	case 0:
		//按书号查询		
		m_Condition1.GetWindowText(m_Condition);
		if(m_BookID.IsEmpty())
		{
			AfxMessageBox("请输入所要查询的书号！");
			GetDlgItem(IDC_BOOKID)->SetFocus();
			return false;
		}
		break;
	case 1:
		//按书名查询
		if(m_BookName.IsEmpty())
		{
			AfxMessageBox("请输入所要查询的书名！");
			GetDlgItem(IDC_BOOK_NAME)->SetFocus();
			return false;
		}
		break;
	case 2:
		//按作者查询
		if(m_Author.IsEmpty())
		{
			AfxMessageBox("请输入所要查询的作者姓名！");
			GetDlgItem(IDC_AUTHOR)->SetFocus();
			return false;
		}
		break;
	case 3:
		//按出版社查询
		if(m_Press.IsEmpty())
		{
			AfxMessageBox("请输入所要查询的出版社！");
			GetDlgItem(IDC_PRESS)->SetFocus();
			return false;
		}
		break;
	case 4:
		//按出版日期查询
		m_Condition2.GetWindowText(m_Condition);
		break;
	}  //end switch

	return true;

}