// ModifRecord.cpp : implementation file
//

#include "stdafx.h"
#include "cj.h"
#include "ModifRecord.h"
#include "Page1.h"

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

/////////////////////////////////////////////////////////////////////////////
// CModifRecord dialog


CModifRecord::CModifRecord(CWnd* pParent /*=NULL*/)
	: CDialog(CModifRecord::IDD, pParent)
{
	//{{AFX_DATA_INIT(CModifRecord)
	m_class = _T("");
	m_course = 0.0f;
	m_studentID = _T("");
	m_xibie = _T("");
	m_xuejie = _T("");
	m_xueqi = _T("");
	//}}AFX_DATA_INIT
}


void CModifRecord::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CModifRecord)
	DDX_Control(pDX, IDC_cmbKemu, m_cmb_kemu);
	DDX_Text(pDX, IDC_edit_Class, m_class);
	DDX_Text(pDX, IDC_edit_course, m_course);
	DDV_MinMaxFloat(pDX, m_course, 0.f, 1000.f);
	DDX_Text(pDX, IDC_edit_studentID, m_studentID);
	DDX_Text(pDX, IDC_edit_Xibie, m_xibie);
	DDX_Text(pDX, IDC_edit_Xuejie, m_xuejie);
	DDX_Text(pDX, IDC_edit_Xueqi, m_xueqi);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CModifRecord, CDialog)
	//{{AFX_MSG_MAP(CModifRecord)
	ON_CBN_SELCHANGE(IDC_cmbKemu, OnSelchangecmbKemu)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CModifRecord message handlers

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

    CDatabase m_database;
    if(!m_database.Open(_T("student")))  return false;
    CRecordset rs(&m_database);
    
	//得到學(xué)界ID
       strXuejie=m_xuejie;
	   rs.Open(CRecordset::forwardOnly,
		   "select 學(xué)界ID from 學(xué)界 where 學(xué)界名稱='"+strXuejie+"'");
       rs.GetFieldValue("學(xué)界ID",strXuejieID);
	   rs.Close();
    //得到系別ID
       strXibie=m_xibie;
	   rs.Open(CRecordset::forwardOnly,
		   "select 系別ID from 系別 where 系別名稱='"+strXibie+"'");
       rs.GetFieldValue("系別ID",strXiBieID);
	   rs.Close();
	 //得到學(xué)期ID
	   strXueQi=m_xueqi;
	   rs.Open(CRecordset::forwardOnly,
		   "select 學(xué)期ID from 學(xué)期 where 學(xué)期='"+strXueQi+"'");
       rs.GetFieldValue("學(xué)期ID",strXueQiID);
	   rs.Close();
     //得到班級ID
       strClass=m_class;
	   rs.Open(CRecordset::forwardOnly,
		   "select 班級ID from 班級 where 班級名稱='"+strClass+"'");
       rs.GetFieldValue("班級ID",strClassID);
	   rs.Close();

    //設(shè)置考試科目的下拉框所取的值。
CString str;
rs.Open(CRecordset::forwardOnly,
		 "select 考試科目 from 考試科目表 where 學(xué)界ID='"+strXuejieID+"' and 系別ID='"+strXiBieID+"' and 班級ID='"+strClassID+"' and 學(xué)期ID='"+strXueQiID+"'");
	 while(!rs.IsEOF())
	 {
		 rs.GetFieldValue("考試科目",str);
		 m_cmb_kemu.AddString(str);
		 rs.MoveNext();
	 }
	 rs.Close();
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CModifRecord::OnOK() 
{
	UpdateData();//更新
    CDatabase m_database;//連接數(shù)據(jù)源對象
		
	m_database.Open(_T("student"));
	CRecordset rs(&m_database);
	

	CString strKemu,SQL,str;
	
	if(m_cmb_kemu.GetCurSel()==-1)
	{
		MessageBox("科目不能為空","系統(tǒng)提示:",MB_ICONEXCLAMATION);
		return;
	}
    m_cmb_kemu.GetLBText(m_cmb_kemu.GetCurSel(),strKemu);
	str.Format("%.3f",m_course);

	SQL="update 成績表 set 成績='"+str+"' where 學(xué)界ID='"+strXuejieID+"' and 系別ID='"+strXiBieID+"' and 班級ID='"+strClassID+"' and 學(xué)期ID='"+strXueQiID+"' and 學(xué)號ID='"+m_studentID+"' and 考試科目名稱='"+strKemu+"'";
    if(MessageBox("真的要修改此記錄嗎?","修改記錄詢問:",MB_OKCANCEL|MB_ICONQUESTION)==IDOK)
	{
		m_database.ExecuteSQL(SQL);
		m_database.Close();
	}


	CDialog::OnOK();
}

void CModifRecord::OnSelchangecmbKemu() 
{

	CString strKemu,str;
	CDatabase m_database;
		
	m_database.Open(_T("student"));
	CRecordset rs(&m_database);
	m_cmb_kemu.GetLBText(m_cmb_kemu.GetCurSel(),strKemu);//得到科目的值
	
	rs.Open(CRecordset::forwardOnly,
		 "select 成績 from 成績表 where 學(xué)界ID='"+strXuejieID+"' and 系別ID='"+strXiBieID+"' and 班級ID='"+strClassID+"' and 學(xué)期ID='"+strXueQiID+"' and 學(xué)號ID='"+m_studentID+"' and 考試科目名稱='"+strKemu+"'");
    if(rs.GetRecordCount()==0)
	{
		MessageBox("對不起！此學(xué)生沒有此門科目的成績！","系統(tǒng)提示:",MB_ICONEXCLAMATION);
		return;
	}
	else
	{
		rs.GetFieldValue("成績",str);//"成績"--->str;
		sscanf(str,"%f",&m_course);//str以數(shù)字的形式送給m_course;
		UpdateData(FALSE);//變量到控件的更新		
	}
    rs.Close();
 
 return;
	
}