add_user.cpp

数据结构大作业

// add_user.cpp : implementation file
//

#include "stdafx.h"
#include "salsary.h"
#include "add_user.h"

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

/////////////////////////////////////////////////////////////////////////////
// add_user dialog


add_user::add_user(CWnd* pParent /*=NULL*/)
	: CDialog(add_user::IDD, pParent)
{
	//{{AFX_DATA_INIT(add_user)
	m_user = _T("");
	m_key = _T("");
	m_name = _T("");
	m_salary = _T("");
	m_age = _T("");
	//}}AFX_DATA_INIT
}


void add_user::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(add_user)
	DDX_Text(pDX, IDC_user, m_user);
	DDV_MaxChars(pDX, m_user, 10);
	DDX_Text(pDX, IDC_key, m_key);
	DDV_MaxChars(pDX, m_key, 10);
	DDX_Text(pDX, IDC_name, m_name);
	DDV_MaxChars(pDX, m_name, 10);
	DDX_Text(pDX, IDC_salary, m_salary);
	DDV_MaxChars(pDX, m_salary, 10);
	DDX_Text(pDX, IDC_age, m_age);
	DDV_MaxChars(pDX, m_age, 10);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(add_user, CDialog)
	//{{AFX_MSG_MAP(add_user)
	ON_EN_CHANGE(IDC_user, OnChangeuser)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_EN_CHANGE(IDC_age, OnChangeage)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// add_user message handlers

void add_user::OnChangeuser() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	
}
#include"wh.h"
void add_user::OnButton1() 
{int t=MessageBox("确认增加用户?","提示!",4+32);
if(t==6)
{UpdateData();
fstream iof("C:\\user.dat",ios::binary|ios::in|ios::out);
if(!iof)
{cerr<<"文件不能打开"<<endl;
return;
}
if (m_user.IsEmpty())
{MessageBox("用户名不得为空!");}
else
{iof.seekp(0,ios::end);
long posEnd=iof.tellp();
user_data Data;
CString user;
iof.seekp(0,ios::beg);
do{iof.read((char*)&Data,sizeof(user_data));
user=Data.user;
}while(user.Compare(m_user)&&iof.tellp()!=posEnd);
if(user.Compare(m_user))
{iof.seekp(0,ios::end);	
strcpy((Data.user),(LPSTR)(LPCTSTR)(m_user));
strcpy((Data.key),(LPSTR)(LPCTSTR)(m_key));
strcpy((Data.name),(LPSTR)(LPCTSTR)(m_name));
(Data.age)=atoi(m_age);
(Data.salary)=atoi(m_salary);
iof.write((char*)&Data,sizeof(user_data));
iof.close();
MessageBox("添加用户成功!");	// TODO: Add your control notification handler code here
}
else MessageBox("该用户已存在!");
}}}	


void add_user::OnButton2() 
{
EndDialog(1);	// TODO: Add your control notification handler code here
	
}

void add_user::OnChangeage() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	
}