bjszdlg.cpp

学生成绩管理系统,实现增加删除修改保存等功能

// BjszDlg.cpp : implementation file
//

#include "stdafx.h"
#include "StuManage.h"
#include "BjszDlg.h"
#include "BjszSet.h"

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

/////////////////////////////////////////////////////////////////////////////
// CBjszDlg dialog


CBjszDlg::CBjszDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBjszDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CBjszDlg)
	m_classID = _T("");
	m_className = _T("");
	m_classSm = _T("");
	//}}AFX_DATA_INIT
}


void CBjszDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBjszDlg)
	DDX_Control(pDX, IDC_BJXX_LIST, m_classlist);
	DDX_Text(pDX, IDC_BJID_EDIT, m_classID);
	DDX_Text(pDX, IDC_BJNAME_EDIT, m_className);
	DDX_Text(pDX, IDC_BJSM_EDIT, m_classSm);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CBjszDlg, CDialog)
	//{{AFX_MSG_MAP(CBjszDlg)
	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_MODIFY_BUTTON, OnModifyButton)
	ON_BN_CLICKED(IDC_CANCEL, OnCancel)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBjszDlg message handlers

BOOL CBjszDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
    m_classlist.InsertColumn(0,"班级代号");
	m_classlist.InsertColumn(1,"班级名称");
	m_classlist.InsertColumn(2,"班级说明");
	CRect rect;
	m_classlist.GetWindowRect(&rect);
	int wid=rect.right-rect.left;
	m_classlist.SetColumnWidth(0,wid/3);
    m_classlist.SetColumnWidth(1,wid/3);
	m_classlist.SetColumnWidth(2,wid/3);
	m_classlist.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 CBjszDlg::RefreshList()
{
    if(!m_database.IsOpen()) {
		m_database.Open(_T("xscjgl"));
	}
	m_classlist.DeleteAllItems();
    CBjszSet m_BjszSet(&m_database);
	CString strSQL;
	strSQL.Format("select * from bjsz");
	m_database.ExecuteSQL(strSQL);
	m_BjszSet.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL);
	if(m_BjszSet.GetRecordCount()!=0)
		m_BjszSet.MoveFirst();
	int i=0;
	while(!m_BjszSet.IsEOF()) {
		CString temp;
		m_BjszSet.GetFieldValue("classID",temp);
		m_classlist.InsertItem(i,temp);
		m_classlist.SetItemText(i,1,m_BjszSet.m_className);
		m_classlist.SetItemText(i,2,m_BjszSet.m_classSm);
		m_BjszSet.MoveNext();
		i++;
	}
	m_BjszSet.Close();
}

void CBjszDlg::OnAddButton() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	//m_database.Close();
	CBjszSet m_BjszSet;
	if(!UpdateData())
		return;
	if(m_classID.GetLength()==0) {
		MessageBox("请输入班级代号");
	    return;
	}
	if(m_className.GetLength()==0) {
		MessageBox("请输入班级名称!");
		return;
	}
	CString strSQL;
	int flag=0;
	//int i=atoi(m_XyszSet.m_xbID);
	int i=atoi(m_classID);
	while(!flag) {
		CBjszSet m_BjszSet(&m_database);
		strSQL.Format("select * from bjsz where classID='%d'",i);
		m_BjszSet.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL);
		if(m_BjszSet.GetRecordCount()==0) {
			strSQL.Format("insert into bjsz values(%d,\'%s',\'%s')",i,m_className,m_classSm);
			m_database.ExecuteSQL(strSQL);
			m_BjszSet.Close();
			m_database.Close();	
			RefreshList();
			flag=1;
		}
	}
	//CDialog::OnOK();	
}

void CBjszDlg::OnSaveButton() 
{
	// TODO: Add your control notification handler code here
	CBjszSet m_BjszSet(&m_database);
	m_BjszSet.m_classID=m_classID;
	m_BjszSet.m_className=m_className;
	m_BjszSet.m_classSm=m_classSm;
	m_BjszSet.Close();
	RefreshList();
	CDialog::OnOK();
}

void CBjszDlg::OnDeleteButton() 
{
	// TODO: Add your control notification handler code here
	CBjszSet m_BjszSet;
	int i=m_classlist.GetSelectionMark();
	CString strSQL;
    int keyid=atoi(m_classlist.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 bjsz where classID='%d'",keyid);
			m_database.ExecuteSQL(strSQL);
			m_database.Close();
			RefreshList();
		}
	}
}

void CBjszDlg::OnModifyButton() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	CBjszSet m_BjszSet;
	CString strSQL;
	int flag=0;
	int i=atoi(m_classID);
	while(!flag) {
		CBjszSet m_BjszSet(&m_database);
		strSQL.Format("update bjsz set className='%s',classSm='%s' where classID='%d'",m_className,m_classSm,i);
		m_database.ExecuteSQL(strSQL);
		m_database.Close();	
		RefreshList();
		flag=1;	
	}
}

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