citydlg.cpp

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// CityDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Ex_Ctrl2SDI.h"
#include "CityDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CCityDlg dialog


CCityDlg::CCityDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCityDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCityDlg)
	m_strCity = _T("");
	m_dwZipCode = 0;
	//}}AFX_DATA_INIT
}


void CCityDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCityDlg)
	DDX_Control(pDX, IDC_LIST1, m_ListBox);
	DDX_Text(pDX, IDC_EDIT_CITY, m_strCity);
	DDV_MaxChars(pDX, m_strCity, 40);
	DDX_Text(pDX, IDC_EDIT_ZIP, m_dwZipCode);
	DDV_MinMaxDWord(pDX, m_dwZipCode, 100000, 999999);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CCityDlg, CDialog)
	//{{AFX_MSG_MAP(CCityDlg)
	ON_BN_CLICKED(IDC_BUTTON_ADD, OnButtonAdd)
	ON_LBN_SELCHANGE(IDC_LIST1, OnSelchangeList1)
	ON_BN_CLICKED(IDC_BUTTON_DEL, OnButtonDel)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCityDlg message handlers

void CCityDlg::OnButtonAdd() 
{
	// TODO: Add your control notification handler code here
	if (!IsValidate()) return;
	int nIndex = m_ListBox.FindStringExact( -1, m_strCity );
	if (nIndex != LB_ERR ){
		MessageBox("该城市已添加！");
		return;
	}
	nIndex = m_ListBox.AddString( m_strCity );
	m_ListBox.SetItemData( nIndex, m_dwZipCode );
}

void CCityDlg::OnSelchangeList1() 
{
	// TODO: Add your control notification handler code here
	int nIndex = m_ListBox.GetCurSel();
	if (nIndex != LB_ERR ){
		m_ListBox.GetText( nIndex, m_strCity );
		m_dwZipCode = m_ListBox.GetItemData( nIndex );
		UpdateData( FALSE );
		GetDlgItem(IDC_BUTTON_DEL)->EnableWindow( TRUE );
	} 
}

BOOL CCityDlg::IsValidate()
{
	UpdateData();
	m_strCity.TrimLeft();
	if (m_strCity.IsEmpty())
	{
		MessageBox("城市名输入无效！");
		return FALSE;
	}
	return TRUE;
}

void CCityDlg::OnButtonDel() 
{
	// TODO: Add your control notification handler code here
	int nIndex = m_ListBox.GetCurSel();
	if (nIndex != LB_ERR ){
		m_ListBox.DeleteString( nIndex );
	} else
		GetDlgItem(IDC_BUTTON_DEL)->EnableWindow( FALSE );
}

BOOL CCityDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	m_dwZipCode = 100000;
	UpdateData( FALSE );
	GetDlgItem(IDC_BUTTON_DEL)->EnableWindow( FALSE );
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}