stuxxdlg.cpp

学生成绩管理系统,实现增加删除修改保存等功能

// StuxxDlg.cpp : implementation file
//

#include "stdafx.h"
#include "StuManage.h"
#include "StuxxDlg.h"
#include "StuxxSet.h"

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

/////////////////////////////////////////////////////////////////////////////
// CStuxxDlg dialog


CStuxxDlg::CStuxxDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CStuxxDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CStuxxDlg)
	m_stuClass = _T("");
	m_stuName = _T("");
	m_stuNo = _T("");
	//}}AFX_DATA_INIT
}


void CStuxxDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CStuxxDlg)
	DDX_Control(pDX, IDC_STUXX_LIST, m_stuList);
	DDX_Text(pDX, IDC_STUCLASS_EDIT, m_stuClass);
	DDX_Text(pDX, IDC_STUNAME_EDIT, m_stuName);
	DDX_Text(pDX, IDC_STUNO_EDIT, m_stuNo);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CStuxxDlg, CDialog)
	//{{AFX_MSG_MAP(CStuxxDlg)
	ON_BN_CLICKED(IDC_ADD_BUTTON, OnAddButton)
	ON_BN_CLICKED(IDC_SAVE_BUTTON, OnSaveButton)
	ON_BN_CLICKED(IDC_DELETE_BUTTON, OnDeleteButton)
	ON_BN_CLICKED(IDC_CANCEL, OnCancel)
	ON_BN_CLICKED(IDC_MODIFY_BUTTON, OnModifyButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CStuxxDlg message handlers

BOOL CStuxxDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	m_stuList.InsertColumn(0,"学生代号");
	m_stuList.InsertColumn(1,"学号");
	m_stuList.InsertColumn(2,"学生姓名");
	m_stuList.InsertColumn(3,"所在班级");
	CRect rect;
	m_stuList.GetWindowRect(&rect);
	int wid=rect.right-rect.left;
	m_stuList.SetColumnWidth(0,wid/4);
    m_stuList.SetColumnWidth(1,wid/4);
	m_stuList.SetColumnWidth(2,wid/4);
	m_stuList.SetColumnWidth(3,wid/4);
	m_stuList.SetExtendedStyle(LVS_EX_FULLROWSELECT);
	RefreshList();
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CStuxxDlg::RefreshList()
{
    if(!m_database.IsOpen()) {
		m_database.Open(_T("xscjgl"));
	}
	m_stuList.DeleteAllItems();
    CStuxxSet m_StuxxSet(&m_database);
	CString strSQL;
	strSQL.Format("select * from xsxx");
	m_database.ExecuteSQL(strSQL);
	m_StuxxSet.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL);
	if(m_StuxxSet.GetRecordCount()!=0)
		m_StuxxSet.MoveFirst();
	int i=0;
	while(!m_StuxxSet.IsEOF()) {
		CString temp;
		m_StuxxSet.GetFieldValue("StuID",temp);
		m_stuList.InsertItem(i,temp);
		m_stuList.SetItemText(i,1,m_StuxxSet.m_StuNo);
		m_stuList.SetItemText(i,2,m_StuxxSet.m_StuName);
		m_stuList.SetItemText(i,3,m_StuxxSet.m_className);
		m_StuxxSet.MoveNext();
		i++;
	}
	m_StuxxSet.Close();
}

void CStuxxDlg::OnCancel() 
{
	// TODO: Add your control notification handler code here
	OnOK();
}

void CStuxxDlg::OnAddButton() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	//m_database.Close();
	CStuxxSet m_StuxxSet;
	if(!UpdateData())
		return;
	if(m_stuNo.GetLength()==0) {
		MessageBox("请输入学号!");
	    return;
	}
	if(m_stuName.GetLength()==0) {
		MessageBox("请输入学生姓名!");
		return;
	}
	CString strSQL;
	int flag=0;
	int i=1;
	while(!flag) {
		CStuxxSet m_StuxxSet(&m_database);
		strSQL.Format("select * from xsxx where StuID=%d",i);
		m_StuxxSet.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL);
		if(m_StuxxSet.GetRecordCount()==0) {
			strSQL.Format("insert into xsxx values(%d,\'%s',\'%s',\'%s')",i,m_stuNo,m_stuName,m_stuClass);
			m_database.ExecuteSQL(strSQL);
			m_StuxxSet.Close();
			m_database.Close();	
			RefreshList();
			flag=1;
		}
		i++;
	}
	//CDialog::OnOK();	
}

void CStuxxDlg::OnSaveButton() 
{
	// TODO: Add your control notification handler code here
	CStuxxSet m_StuxxSet(&m_database);
	m_StuxxSet.m_StuNo=m_stuNo;
	m_StuxxSet.m_StuName=m_stuName;
	m_StuxxSet.Close();
	RefreshList();
	CDialog::OnOK();
}

void CStuxxDlg::OnDeleteButton() 
{
	// TODO: Add your control notification handler code here
	CStuxxSet m_StuxxSet;
	int i=m_stuList.GetSelectionMark();
	CString strSQL;
    int keyid=atoi(m_stuList.GetItemText(i,0));
	if(keyid<0)
	{
		MessageBox("请选择您要删除的一行！");
	}
	else
	{
		if(MessageBox("您确定要删除该记录吗?","是否删除",MB_OKCANCEL|MB_ICONQUESTION)==IDOK)
		{
			strSQL.Format("delete from xsxx where StuID=%d",keyid);
			m_database.ExecuteSQL(strSQL);
			m_database.Close();
			RefreshList();
		}
	}
}

void CStuxxDlg::OnModifyButton() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	CStuxxSet m_StuxxSet;
	CString strSQL;
	int flag=0;
	//int i=atoi(m_stuNo);
	while(!flag) {
		CStuxxSet m_StuxxSet(&m_database);
		strSQL.Format("update xsxx set StuName='%s',className='%s' where StuNo='%s'",m_stuName,m_stuClass,m_stuNo);
		m_database.ExecuteSQL(strSQL);
		m_database.Close();	
		RefreshList();
		flag=1;	
	}
}