listoperdlg.cpp

用户信息的增加、修改、删除、查询等功能

// ListOperDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ListOper.h"
#include "ListOperDlg.h"
#include "MyDefine.h"

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

extern char names[10000][10];//用户存放用户姓名
extern int usernum;//用户个数
extern LNode *Head;
CString SClickStr="";
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CListOperDlg dialog

CListOperDlg::CListOperDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CListOperDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CListOperDlg)
	m_edt_add = _T("");
	m_edt_mod = _T("");
	m_edt_query = _T("*");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CListOperDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CListOperDlg)
	DDX_Control(pDX, IDC_LIST_USER, m_list_user);
	DDX_Text(pDX, IDC_EDT_ADD, m_edt_add);
	DDX_Text(pDX, IDC_EDT_MOD, m_edt_mod);
	DDX_Text(pDX, IDC_EDT_QUERY, m_edt_query);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CListOperDlg, CDialog)
	//{{AFX_MSG_MAP(CListOperDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTN_QUERY, OnBtnQuery)
	ON_LBN_SELCHANGE(IDC_LIST_USER, OnSelchangeListUser)
	ON_BN_CLICKED(IDC_BTN_MODIFY, OnBtnModify)
	ON_BN_CLICKED(IDC_BNT_DEL, OnBntDel)
	ON_BN_CLICKED(IDC_BNT_ADD, OnBntAdd)
	ON_BN_CLICKED(IDC_BTN_SAVE, OnBtnSave)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CListOperDlg message handlers

BOOL CListOperDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	Head=CreateList(Head);
	ReadTxtFile("userinfo.txt");
	Head=Head->next;
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CListOperDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CListOperDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CListOperDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CListOperDlg::OnBtnQuery() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	if(strcmp(m_edt_query,"")==0)
	{
		MessageBox("查询数据不能为空！");
		return;
	}
	if(Head==NULL)
	{
		MessageBox("没有数据！");
		return;
	}
	Head=ReadDataList(Head,(LPSTR)(LPCSTR)m_edt_query);
	InsertListBox();
	UpdateData(FALSE);
}
////////////////
//返回列表中当前选中的值
CString CListOperDlg::SingleClick()
{
	CString strValue;
	m_list_user.GetText(m_list_user.GetCurSel(),strValue);
	return strValue;
}

void CListOperDlg::OnSelchangeListUser() 
{//单击列表消息函数
	// TODO: Add your control notification handler code here
	SClickStr=SingleClick();
}

void CListOperDlg::OnBtnModify() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	if(strcmp(m_edt_mod,"")==0)
	{
		MessageBox("修改的新数据不能为空！");
		return;
	}
	if(strcmp(SClickStr,"")==0)
	{
		MessageBox("请选择被修改数据！");
		return;
	}
	Head=ModifyDataList(Head,(LPSTR)(LPCSTR)SClickStr,(LPSTR)(LPCSTR)m_edt_mod);
	SClickStr="";
	Head=ReadDataList(Head);
	InsertListBox();
	UpdateData(FALSE);
}
////////////////
//向ListBox中插入数据
void CListOperDlg::InsertListBox()
{
	CString strname;
	m_list_user.ResetContent();
	for(int i=0;i<usernum;i++)
	{
		strname=names[i];
		m_list_user.AddString(strname);
	}
	usernum=0;
}

void CListOperDlg::OnBntDel() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	if(strcmp(SClickStr,"")==0)
	{
		MessageBox("请选择被删除数据！");
		return;
	}
	Head=DeleteDataList(Head,(LPSTR)(LPCSTR)SClickStr);
	SClickStr="";
	Head=ReadDataList(Head);
	InsertListBox();
	UpdateData(FALSE);
}

void CListOperDlg::OnBntAdd() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	if(strcmp(m_edt_add,"")==0)
	{
		MessageBox("新增的数据不能为空！");
		return;
	}
	Head=InsertDataList(Head,(LPSTR)(LPCSTR)m_edt_add);
	Head=ReadDataList(Head);
	InsertListBox();
	UpdateData(FALSE);
}

void CListOperDlg::OnBtnSave() 
{
	// TODO: Add your control notification handler code here
	WirteTxtFile("userinfo.txt");
}