userfind.cpp

图书管理系统,数据结构思想,用 C++编写,经测试,可用

// UserFind.cpp : implementation file
//

#include "stdafx.h"
#include "library.h"
#include "UserFind.h"

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

/////////////////////////////////////////////////////////////////////////////
// CUserFind dialog


CUserFind::CUserFind(CWnd* pParent /*=NULL*/)
	: CDialog(CUserFind::IDD, pParent)
{
	//{{AFX_DATA_INIT(CUserFind)
	m_Identity = _T("");
	m_StartTime = 0;
	m_UserID = _T("");
	m_UserName = _T("");
	m_Selection = -1;
	//}}AFX_DATA_INIT
}


void CUserFind::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CUserFind)
	DDX_Control(pDX, IDC_COMBO2, m_Condition2);
	DDX_Control(pDX, IDC_COMBO1, m_Condition1);
	DDX_Text(pDX, IDC_IDENTITY, m_Identity);
	DDX_DateTimeCtrl(pDX, IDC_START_TIME, m_StartTime);
	DDX_Text(pDX, IDC_USERID, m_UserID);
	DDX_Text(pDX, IDC_USER_NAME, m_UserName);
	DDX_Radio(pDX, IDC_RADIO1, m_Selection);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CUserFind, CDialog)
	//{{AFX_MSG_MAP(CUserFind)
	ON_BN_CLICKED(IDC_FIND_USER, OnFindUser)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CUserFind message handlers

void CUserFind::OnFindUser() 
{
	// TODO: Add your control notification handler code here
	//完成查找用户的功能
	if(CheckValid())
		CDialog::OnOK();
	
}

BOOL CUserFind::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
}

BOOL CUserFind::CheckValid()
{
	//检查输入的合法性
	UpdateData();
	
	switch(m_Selection)
	{
	case 0:
		//按借书证号查询		
		m_Condition1.GetWindowText(m_Condition);
		if(m_UserID.IsEmpty())
		{
			AfxMessageBox("请输入所要查询的借书证号！");
			GetDlgItem(IDC_USERID)->SetFocus();
			return false;
		}
		break;
	case 1:
		//按用户姓名查询
		if(m_UserName.IsEmpty())
		{
			AfxMessageBox("请输入所要查询的用户姓名！");
			GetDlgItem(IDC_USER_NAME)->SetFocus();
			return false;
		}
		break;
	case 2:
		//按身份证号查询
		if(m_Identity.IsEmpty())
		{
			AfxMessageBox("请输入所要查询的身份证号！");
			GetDlgItem(IDC_IDENTITY)->SetFocus();
			return false;
		}
		break;
	case 3:
		//按办证日期查询
		m_Condition2.GetWindowText(m_Condition);
		break;
	}  //end switch

	return true;


}